வளம்

contents

• 1. me
• 2. access
• 3. sructure
• 4. language
• 5. mathematics
• 6. science
• 7. social
• 8. egineering
• 9. education
• 10. cognification

1. me

https://listed.to/@prasanth
https://app.standardnotes.com/
this page link: https://listed.to/@prasanth/75601/
profile: https://listed.to/@prasanth/75456/

2. access

ai

https://lumo.proton.me/
https://chatgpt.com/
https://www.xprivo.com/
https://chat.publicai.co/
https://venice.ai/chat/
https://claude.ai
https://chat.deepseek.com/
https://www.perplexity.ai/
https://indus.sarvam.ai/
https://playground.allenai.org/
https://huggingface.co/chat/
https://grok.com/
https://copilot.microsoft.com
https://www.meta.ai/
https://gemini.google.com/app
https://qwen.ai/
https://duck.ai/
https://chat.falconllm.tii.ae/
https://chat.mistral.ai/chat

https://chat.pageindex.ai/chat
https://www.ck12.org/flexi/
https://github.com/ScholarXIV/OpenScholarXIV

https://www.ycombinator.com
https://www.startuptn.in/

search

web
https://www.google.com/
https://marginalia-search.com/
https://mwmbl.org/

words: aard2
https://aarddict.org/
https://ftp.halifax.rwth-aachen.de/aarddict/
https://archive.org/details/open-english-wordnet-2024
https://archive.org/details/ttak-slobs

softwares
https://alternativeto.net/
https://github.com/
https://sourceforge.net/

https://fediverse.party/en/miscellaneous/

3. structure

• directory
• encyclopedia
• library
• data
• standards
• internet

directory

Startup Directory
https://www.ycombinator.com/companies

Founder Directory
https://www.ycombinator.com/founders

திறந்த சமூகங்கள்
https://zulip.com/communities/

https://network.bepress.com/
https://ddh.edch.eu/en

https://www.openculture.com/
https://open-access.network/en/
https://open-access.network/en/information/subject-specific-open-access

https://doapr.coar-repositories.org/
https://oad.simmons.edu/oadwiki/main_page
https://guides.lib.unc.edu/open-access-and-scholarly-communications/finding-oa-content
http://www.loadb.org/control.do?_ooad
http://www.loadb.org/control.do?_idx

https://ci.nii.ac.jp

https://fmhy.net/educational
https://directory.fsf.org/
https://oss.gallery/

https://utopia.ut.edu/oer/courses
https://tamilnadupubliclibraries.org/digital-library/
https://library.cict.in/open.html

https://www.justfreebooks.info/

https://metatext.io/

https://github.com/topics/awesome
https://github.com/topics/awesome-list
https://github.com/topics/resources
https://github.com/topics/lists
https://github.com/topics/curated
resources, curated list, awesome list,

encyclopedia

wikipedia
https://www.wikipedia.org/
https://en.wikipedia.org/wiki/wikipedia:contents
https://en.wikipedia.org/wiki/wikipedia:list_of_free_online_resources
https://www.wikiwand.com/

open encyclopedia of cognitive science
https://oecs.mit.edu/

https://vikaspedia.in/
https://saudipedia.com/en/

stanford encyclopedia of philosophy
https://plato.stanford.edu/

https://grokipedia.com/

https://www.dbpedia.org/

--

library

https://archive.org/
https://openlibrary.org/

https://oercommons.org/
https://search.creativecommons.org/

https://www.oapen.org/
https://www.doabooks.org/

https://www.europeana.eu/en
https://www.digitale-sammlungen.de/en

https://ndl.iitkgp.ac.in/
https://www.loc.gov/
https://dar.bibalex.org/en/

https://www.nlm.nih.gov/
https://catalog.nlm.nih.gov/
https://www.ncbi.nlm.nih.gov/

https://direct.mit.edu/
https://uclpress.co.uk/
https://www.aupress.ca/
https://press.lse.ac.uk/
https://www.cambridge.org/core/publications/open-access
https://www.ucpress.edu/book-lists/open-access
https://dash.harvard.edu
https://ora.ox.ac.uk/
https://escholarship.org/
https://muse.jhu.edu/
https://searchworks.stanford.edu/
https://oar.princeton.edu/
https://www.degruyterbrill.com/
https://authors.library.caltech.edu/
https://www.sup.ac.uk/
https://press.ucalgary.ca/
https://universitypress.whiterose.ac.uk/
https://read.uolpress.co.uk/
https://cardiffuniversitypress.org/
https://uwestminsterpress.co.uk/
https://aberdeenunipress.org/
https://unipress.hud.ac.uk/
https://openpress.sussex.ac.uk/
https://books.ed.ac.uk/edinburgh-diamond/index

https://openaccesstexts.com/
openstax.org

https://www.openbookpublishers.com/
https://scaife.perseus.org/
https://www.mediastudies.press/
https://standardebooks.org/
https://onemorelibrary.com/
https://www.gutenberg.org/
https://commons.libretexts.org/
https://oll.libertyfund.org/
https://www.freetechbooks.com/
https://www.fulcrum.org/
https://cudl.lib.cam.ac.uk/
https://www.intechopen.com/
https://milneopentextbooks.org/
https://opentextbc.ca/
https://onlinebooks.library.upenn.edu/
https://open.umn.edu/opentextbooks/
https://punctumbooks.com/
https://www.leverpress.org/
https://newprairiepress.org/ebooks/
https://scholarworks.gvsu.edu/oer/
https://textbookgo.com/
https://digitalcommons.trinity.edu/oer/
https://www.freeditorial.com/en
https://openchapter.io/
https://www.pagebypagebooks.com/
https://manybooks.net/
https://www.globalgreyebooks.com/
https://via.library.depaul.edu/
https://knightscholar.geneseo.edu/geneseo-authors/
https://mayflybooks.org/

https://www.justfreebooks.info/
http://www.librarydir.org/
https://www.openlibhums.org/
https://unglue.it

https://www.textbookequity.org/
https://leanpub.com/store?category=&sort=free_purchases_allowed

https://zimit.kiwix.org/
https://kiwix.org/en/

https://www.mathfiction.net/

https://unesdoc.unesco.org/

https://dp.la/
https://pro.dp.la/

https://archiveofourown.org/

https://idsa.in/publication-type/book

audio:
http://librivox.org/
https://etc.usf.edu/lit2go/

music:
https://musopen.org
https://freemusicarchive.org
https://asia-archive.si.edu/series/music/

image:
museums: cc
https://artsandculture.google.com/

multi collections:
https://commons.m.wikimedia.org/

https://www.librarything.com/
https://search.worldcat.org/
https://www.hathitrust.org/
https://openalex.org/

https://en.wikipedia.org/wiki/list_of_digital_library_projects

keys

open access
fully open access university press, list
nonprofit / scholar-led oa book publishers
non-profit, open access publisher of peer-reviewed academic journals and books
open access press
open textbooks

தரவகம்

dataset search
https://datasetsearch.research.google.com/

kaggle: your machine learning and data science community
https://www.kaggle.com/

hugging face – the ai community building the future.
https://huggingface.co/

github
https://github.com/

datasets-opendatalab
https://opendatalab.org.cn/

https://researchdata.se/en

https://www.opensanctions.org/
https://gptkb.org/

standards

https://www.bipm.org/en/
https://www.nist.gov/

internet

https://www.ietf.org/
https://www.iana.org/
https://www.w3.org/

https://schema.org/

4. மொழி

• general
• tamil
• orthography, grapholinguistics
• phonetics, phonology
• semiotics
• semantics
• pragmatics
• syntax
• morphology
• lexicology

general

https://langsci-press.org/

https://www.lagb.org.uk/about-linguistics/open-access-for-uk-linguists/

https://www.fsi-language-courses.org/

tamil

• general
• word
• library
• learn tamil

general

தமிழ் இடங்கள்.பொதுத்தளங்கள்
https://listed.to/@prasanth/76075/

words

தமிழ் இடங்கள்.சொற்கள்
https://listed.to/@prasanth/75075/

https://sorkuvai.tn.gov.in/
https://tamillexicon.com/
https://valluvarvallalarvattam.com/
https://mydictionary.in/
https://dsal.uchicago.edu/dictionaries/
http://sangacholai.in/
http://umarajk.in/UGC_Dic_Dec_2013/Default.aspx
https://www.cfilt.iitb.ac.in/indowordnet/

library

https://tholkappiyam.org
https://www.tamillexicon.com/thirukkural/
https://kural.page/
https://tamildigitallibrary.in/
https://library.cict.in/ebooks.html
https://freetamilebooks.com/
http://languageinindia.com/
sangamtranslationsbyvaidehi.com
https://noolaham.foundation
https://www.noolaham.org/
https://tamilbookshelf.in/
https://kaniyam.com/
https://www.tagavalaatruppadai.in/
https://www.tamilvu.org/ta/tdb-html-index-340599
http://www.tamiluniversitydde.in

https://tamil.wiki

https://www.tamilvu.org/library/nationalized/html/index.htm
https://sangaelakkiyam.org/
https://www.projectmadurai.org/
https://commons.wikimedia.org/wiki/Category:Tamil-language_PDF_files
https://www.sirukathaigal.com/

https://tamilheritage.org/

learn tamil

https://learn-tamil.com/
https://openbooks.lib.msu.edu/basictamil/
https://www.learntamil.com/
https://www.vilaiyaatu.com
https://sorkkal.com/
https://oss.neechalkaran.com/
https://apps.neechalkaran.com/

https://www.language-archives.org/language/tam
https://github.com/infittofficial/awesome-tamil
https://library.cict.in/open.html
https://tamilnadupubliclibraries.org/digital-library/

https://github.com/tk120404/tamilproverbs
https://github.com/ebookfoundation/free-programming-books/blob/main/books/free-programming-books-ta.md
https://github.com/neechalkaran/tamil-corpus

FTE FreeTamilEbooks
https://play.google.com/store/apps/details?id=com.jskaleel.fte

https://fetna.org/

tools

தமிழ்த் தொடரியல் பகுப்பாய்வி (A Syntactic Parser for Tamil)
https://plural.iiit.ac.in/tamilparser

--

semiotics

by light

orthography, grapholinguistics

unicode – the world standard for text and emoji
https://home.unicode.org/

by sound

phonetics, phonology

https://users.castle.unc.edu/~jlsmith/phonetics-resources.html
https://www.internationalphoneticassociation.org/content/phonetics-resources-and-tutorials

semantics

https://www.wiktionary.org/
https://en-word.net/
https://sorkuvai.tn.gov.in/
https://glossary.sil.org/term

https://translate.google.com/

https://conceptnet.io/
https://framenet.icsi.berkeley.edu/

https://clld.org/
https://www.ldc.upenn.edu/

5. mathematics

https://textbooks.aimath.org/textbooks/approved-textbooks/

https://www.wolframalpha.com/

https://openlogicproject.org/
https://richardhammack.github.io/bookofproof/
https://www.logicmatters.net/
https://carnap.io/
https://www.openintro.org/
https://logic.stanford.edu

https://www.openbookpublishers.com/categories/mathematics

Software Foundations
https://softwarefoundations.cis.upenn.edu/

Agda Programming Language Foundations in Agda – Table of Contents
https://plfa.github.io/

Rocq Prover
https://rocq-prover.org/

Lean enables correct, maintainable, and formally verified code
https://lean-lang.org/

https://www.cl.cam.ac.uk/teaching/2526/lecturers.html
https://dl.acm.org/

6. science

U.S. National Science Foundation
https://www.nsf.gov/

National Academy of Sciences
https://www.nasonline.org/

National Institute of Standards and Technology
https://www.nist.gov/

National Institutes of Health (NIH) |
https://www.nih.gov/

https://www.damtp.cam.ac.uk/user/tong/teaching.html
https://pdg.lbl.gov/
https://uspas.fnal.gov/resources/online-resources.shtml
https://www.hepdata.net/
https://cds.cern.ch/
http://hyperphysics.phy-astr.gsu.edu/
https://hypertextbook.com/

https://iupac.org/
https://webbook.nist.gov/chemistry/
https://pubchem.ncbi.nlm.nih.gov/

https://pubs.acs.org/

https://www.ncbi.nlm.nih.gov/
https://parisjc.libguides.com/c.php?g=761524&p=5460682

https://www.inaturalist.org/
https://www.gbif.org/
https://www.biodiversitylibrary.org/
https://xeno-canto.org/
https://www.allaboutbirds.org/

https://nanohub.org/
https://www.freebooks4doctors.com/

https://cernandsocietyfoundation.cern/projects/

https://hal.science

7. social

https://en.wikipedia.org/wiki/Wikipedia:Contents/Portals/Society_and_social_sciences
https://en.wikiversity.org/wiki/portal:social_sciences
https://en.wikipedia.org/wiki/portal:geography
https://en.wikipedia.org/wiki/Portal:Journalism

https://data.un.org/Glossary.aspx

https://www.indiacode.nic.in/
https://www.utilitarianism.net/
https://www.sociologyguide.com/

https://data.un.org/
http://news.bbc.co.uk/2/hi/country_profiles

8. engineering

https://www.fulcrum.org/ee
https://www.cl.cam.ac.uk/teaching/2526/lecturers.html
https://softwarefoundations.cis.upenn.edu/
https://plfa.github.io/
https://www-nlp.stanford.edu/ir-book/

9. education

• 9.1. syllabus
• 9.2. school
• 9.3. college
• 9.4. standard
• 9.4. research

9.1. syllabus

https://archive.org/details/after12
https://archive.org/details/after-graduation/
https://www.opensyllabus.org/
https://jeemain.nta.nic.in/
https://jeeadv.ac.in/
https://neet.nta.nic.in/
https://iimcat.ac.in
https://www.allindiabarexamination.com/
https://allduniv.ac.in/syllabus/global/syl-cret-globe.pdf
https://ncees.org/
https://www.csirhrdg.res.in/home/index/1/default/3485/78
https://gate2026.iitg.ac.in/exam-papers-and-syllabus.html
https://www.ugcnetonline.in/syllabus-new.php
https://tnpsc.gov.in/english/syllabus.html
https://upsc.gov.in/index.php

prompts:

list of syllabus catalogue from universities (open access) with link in Simple text within copiable block code,
University Syllabus Catalogues — Open Access

9.2. school

• 9.2.1. for child
• 9.2.2. 12

9.2.1. for child

https://www.khanacademy.org/kids
http://www.stemkalvi.org/books/
http://en.childrenslibrary.org/
https://storyweaver.org.in/en/
http://www.magickeys.com/books/
https://bookdash.org/
https://nrich.maths.org/

9.2.2. 12

https://flexbooks.ck12.org/flexbooks/
https://openstax.org/
https://www.ck12.org/flexi/

9.3. college

https://commons.libretexts.org/
https://en.wikipedia.org/wiki/Wikipedia:Contents/Portals
https://ocw.mit.edu/
https://see.stanford.edu/
https://pll.harvard.edu/
https://ocw.tudelft.nl/
https://swayam.gov.in/
http://www.tamiluniversitydde.in
https://www.tnou.ac.in/oar.php
https://www.merlot.org/
https://www.saylor.org/
https://www.nonprofitready.org/
https://join.owl.inc/
https://www.coursera.org/
https://www.edx.org/

9.4. standard

https://www.nist.gov/
https://www.bipm.org/en/

9.5. research

https://explore.openaire.eu/
https://zenodo.org/
https://doaj.org/
https://arxiv.org/
https://core.ac.uk/
https://network.bepress.com/
https://www.inflibnet.ac.in/
https://shodhganga.inflibnet.ac.in/
https://ndl.iitkgp.ac.in/
https://research.aalto.fi/
https://researchportal.helsinki.fi/
https://www.nature.com/nature-portfolio
https://www.springeropen.com/
https://www.mdpi.com/
https://plos.org/
https://scholar.google.com/
https://www.semanticscholar.org/
https://scholar.archive.org/
https://scholar.archive.org/fatcat/
https://zbmath.org/
https://dl.acm.org/
https://hal.science/
https://www.ncbi.nlm.nih.gov/
https://openaccesspub.org/

https://en.wikipedia.org/wiki/Category:Laboratories_by_country
https://www.usa.gov/agencies/national-laboratories
https://www.dhs.gov/archive/science-and-technology/national-federal-laboratories-research-centers
https://www.ncbi.nlm.nih.gov/books/nbk568355/

https://www.csir.res.in/en/csir-labs-unit
https://www.csir.res.in/en/csir-labs

https://www.research.gov

https://en.wikipedia.org/wiki/national_academy

https://www.darpa.mil/research
https://openlab.cern/our-projects/
https://home.cern/science/experiments/
https://par.nsf.gov/

Comparison of research networking tools and research profiling systems - Wikipedia
https://en.wikipedia.org/wiki/Comparison_of_research_networking_tools_and_research_profiling_systems

10. cognification

• 10.0. general
• 10.1. linguistics
• 10.2. philosophy
• 10.3. psychology
• 10.4. neuroscience
• 10.5. anthropology
• 10.6. ai

10.0. general

the open encyclopedia of cognitive science
https://oecs.mit.edu/

https://direct.mit.edu/pages/cognet

https://opencourse.inf.ed.ac.uk/irr/topic-guidance/cogsci

language, cognition, and mind | book series home
https://link.springer.com/series/13376

10.1. linguistics

https://clld.org/
https://langsci-press.org/
https://languagesgulper.com/
https://www.glossa-journal.org/
https://www.ldc.upenn.edu/

https://archive.org/details/mozhi/
https://archive.org/details/morphology_202511

https://oaling.wordpress.com/

10.2. philosophy

• general
• ontology
• logic
• epistemology
• ethics
• aesthetics

https://iep.utm.edu/
https://plato.stanford.edu/
philpapers.org

https://ncatlab.org/
http://www.philosophy-index.com/
https://phrontistery.info/
https://diversityreadinglist.org/
https://mally.stanford.edu/
https://www.earlymoderntexts.com/

https://en.wikipedia.org/wiki/portal:philosophy
https://en.wikipedia.org/wiki/outline_of_philosophy
https://en.wikipedia.org/wiki/glossary_of_philosophy
https://en.wikipedia.org/wiki/list_of_philosophical_concepts
https://en.wikipedia.org/wiki/category:philosophical_concepts
https://en.wikipedia.org/wiki/category:philosophy

ontology

https://archive.org/details/ontology_202511
https://slides.com/similis/short-introduction-biological-ontologies
https://kizi.vse.cz/wp-content/uploads/seminar/2115/slidy.pdf
http://ontology.buffalo.edu/smith/introontology_course.html
https://ontology.iupac.org/
https://www.semantic-web-book.org/
http://www.meteck.org/
https://people.cs.uct.ac.za/~mkeet/oebook
https://github.com/ohsubd2k/bdk10-information-retrieval

logic

https://openlogicproject.org/
https://www.logicmatters.net/
https://carnap.io/
https://richardhammack.github.io/bookofproof/
https://proofwiki.org

10.3. psychology

https://en.wikipedia.org/wiki/portal:psychology

APA Dictionary of Psychology
https://dictionary.apa.org/

https://nobaproject.com/

10.4. neuroscience

https://compcogneuro.org/
https://neurosci.ro/
https://openneuro.org/

https://www.humanconnectome.org/
https://neuromorpho.org/

https://nba.uth.tmc.edu/neuroscience/
https://www.austinlim.com/open-neuroscience-initiative
https://openbooks.lib.msu.edu/neuroscience/
https://openbooks.lib.msu.edu/introneuroscience1/
https://ecampusontario.pressbooks.pub/neurosciencecdn2/
https://www.ibroneuroscience.org/issues
https://pll.harvard.edu/series/fundamentals-neuroscience

https://www.ncbi.nlm.nih.gov/books

10.5. anthropology

https://www.eva.mpg.de/index/
https://www.anthroencyclopedia.com/

10.6. ai

https://web.stanford.edu/~jurafsky/slp3/
https://princeton-nlp.github.io/cos484/
https://www.ai.uni-hannover.de/teaching/courses/inlp
https://nlp.stanford.edu/fsnlp/