வளம்
August 14, 2026•990 words
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://chat.publicai.co/
https://venice.ai/chat/
https://chat.deepseek.com/
https://www.meta.ai/
https://gemini.google.com/app
https://claude.ai
https://qwen.ai/
https://indus.sarvam.ai/
https://www.perplexity.ai/
https://playground.allenai.org/
https://huggingface.co/chat/
https://copilot.microsoft.com
https://grok.com/
https://www.xprivo.com/
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
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://fmhy.net/educational
https://directory.fsf.org/
https://oss.gallery/
https://utopia.ut.edu/oer/courses
https://guides.lib.berkeley.edu/c.php?g=334953&p=6086261
https://tamilnadupubliclibraries.org/digital-library/
https://library.cict.in/open.html
https://mkuniversity.ac.in/mkulib/openaccess_link.php
https://tnou.ac.in/Library.php#menu5
https://www.justfreebooks.info/
http://www.librarydir.org/
https://unglue.it
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://plato.stanford.edu/
https://www.sahapedia.org/
https://vikaspedia.in/
https://saudipedia.com/en/
--
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://www.harvardclassics365.com/p/free.html
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://hup.fi/
https://www.upress.umn.edu/
https://openaccesstexts.com/
openstax.org
https://commons.libretexts.org/
https://www.openbookpublishers.com/
https://scaife.perseus.org/
https://standardebooks.org/
https://onemorelibrary.com/
https://ubiquitypress.com/
https://www.openlibhums.org/
https://www.mediastudies.press/
https://www.gutenberg.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://catalogue.openbookcollective.org/books
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.textbookequity.org/
https://leanpub.com/store?category=&sort=free_purchases_allowed
https://zimit.kiwix.org/
https://kiwix.org/en/
https://dp.la/
https://pro.dp.la/
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://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/
4. மொழி
- general
- tamil
- orthography, grapholinguistics
- phonetics, phonology
- semiotics
- semantics
- pragmatics
- syntax
- morphology
- lexicology
general
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.tamilvu.org/ta/library-libcontnt-273141
https://www.tagavalaatruppadai.in/
https://www.tamilvu.org/ta/tdb-html-index-340599
https://www.tamilvu.org/library/nationalized/html/index.htm
https://kural.page/
https://www.tamillexicon.com/thirukkural/
https://store.tamillexicon.com/
https://tamildigitallibrary.in/
https://library.cict.in/ebooks.html
https://ta.wikisource.org
https://commons.wikimedia.org/wiki/Category:Tamil-language_PDF_files
https://commons.wikimedia.org/wiki/Category:PDF_files_in_Tamil_with_public_domain_license
https://archive.org/details/tamilpublicdomainbooksdownloadlinks
https://freetamilebooks.com/
http://languageinindia.com/
sangamtranslationsbyvaidehi.com
https://noolaham.foundation
https://www.noolaham.org/
https://tamilbookshelf.in/
https://kaniyam.com/
http://www.tamiluniversitydde.in
https://sangaelakkiyam.org/
https://www.projectmadurai.org/
https://www.sirukathaigal.com/
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
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://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://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://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/
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
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
https://storyweaver.org.in/en/
https://www.tate.org.uk/kids
https://projecteuler.net/archives
https://www.mathsisfun.com/
https://www.khanacademy.org/kids
http://www.stemkalvi.org/books/
http://en.childrenslibrary.org/
http://www.magickeys.com/books/
https://bookdash.org/
https://www.e-learningforkids.org/
https://archived.metmuseum.org/art/online-features/metkids/
https://nrich.maths.org/
https://edu.rsc.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://en.wikipedia.org/wiki/national_academy
https://www.darpa.mil/research
https://www.darpa.mil/research/programs
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
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/
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/
this page
வளம்
open access resources