From Quora Digest (1/27/17):
What are some cool dark web websites?
Eric Pudalov, Tech writer and researcher, coder-in-training, darknet user
Updated Jan 8, 2016
While the word "cool" is highly subjective with regard to Internet sites, I'd say I've come across a number of fascinating sites on the Tor network recently.
Seeing that I have some friendly competition in the "onion" area, I'll add a few more.
WARNING: Some of these definitely contain adult content, disturbing content, or possibly illegal activity (i.e. drug markets, gun markets, hacking services, etc.). Don't go walking in like, "Hey everybody!! Can I get some coke and grenades??"
Courtesy of "Welcome to Dark Web Links and More" http://jdpskjmgy6kk4urv.onion/li... and HiddenWiki Deep Web Links
Lists of Links and Wikis, Forums, etc.:
The Light Hidden Wiki http://wikiwarixvouhwyn.onion/wi...
onion soup http://soupksx6vqh3ydda.onion/li...
The Hidden Wiki http://zqktlwi4fecvo6ri.onion/wi...
The Dark List http://uxxasdkkxtrzppvv.onion/in...
Welcome to the Uncensored Hidden Wiki http://uhwikih256ynt57t.onion/
Hidden Wiki - Tor Wiki - Onion Links Directory http://wikitjerrta4qgz4.onion/
All You're Wiki http://allyour4nert7pkh.onion:88...
Tor Wiki¬ http://torwikignoueupfm.onion/
Hidden Wiki http://hwikis25cffertqe.onion/in...
Yet another Tor directory http://bdpuqvsqmphctrcs.onion/so... (This one I found on my own - it has 24,433 links to date, but any of the ones that end in Hostinforme.com are no longer active.)
OSP Links http://googojjjxpclkepr.onion/
Vault 43 http://vault43z5vxy3vn3.onion/
The Hub (forum) http://thehub7dnl5nmcz5.onion/
Agora Forum http://lacbzxobeprssrfx.onion/
Onion Soup (links and things) http://soupksx6vqh3ydda.onion/
Torum (forum) http://torum4kqr55yqui6.onion/
French IRC Tor http://fitwebwmjekqsyrw.onion/
Burnout (links) http://burnoutxf6o2yvsw.onion/
Q&A (similar to Yahoo Answers) http://pequ3i77q5l4w4sw.onion/
Benji's Blog¬ http://sonntag6ej43fv2d.onion/en
Secret Stash (blog) http://dn4hcr3qhlpaiygr.onion/
The Plague (links, etc.): http://zseijor556d5t4yf.onion/
Dark News (forum): http://xhb4vpn4a67sug7t.onion/
secure storage backup: http://vuprojdiade5depl.onion/
McRetro - great old school computer and old school gaming forum: http://mcretro35qepy5cy.onion/
Hidden Hosting Provider: http://7zzohostingx4mes.onion/
Darknet Website Design: http://cqxf3ijwspi6sed4.onion/
Encryptor RaaS: http://encryptor3awk6px.onion/
Computers...Anonymous: Encryption Goodies: Websites...Anonymous http://pornpetscauod443.onion/co...
Floppy Drive Music http://2zcjxgh6xq4o3uvl.onion/
Programming Languages, Martial Arts, and Computers: http://mh7mkfvezts5j6yu.onion/
Post It! Your Paste Bin http://postits4tga4cqts.onion/
Private Mailers 2015 http://maill4dnx45yrtsy.onion/
CyberGuerrilla Anonymous NeXus Services: http://lu4qfnnkbnduxurt.onion/
The Tin Hat Privacy Guide: http://qza32xuddl3guikc.onion/
Preface To The Electronic Release of the Hacker Crackdown: http://c3jemx2ube5v5zpg.onion/?d...
Tor hidden service search - a clearnet search for the Tor network
TORCH: Tor Search - http://xmh57jrzrnw6insl.onion/
Grams (disclaimer: contains drugs) http://grams7enufi7jmdl.onion/
Helix Light http://grams7enufi7jmdl.onion/he...
Flow - Grams http://grams7enufi7jmdl.onion/in... (a URL shortcut for Tor - very useful!!)
Sinbad Search http://sinbad66644fr5lq.onion/ - newer search engine on Tor
Education by Tursi -http://tssa3saypkimmkcy.onion/pu...
Crimenetwork TOR Version http://crimenc5wxi63f4r.onion/in...?
Cryptome Archive USB of Over 70,000 files from June 1996 to July 2013 http://h2am5w5ufhvdifrs.onion/
IDC Italian Darknet Community http://2qrdpvonwwqnic7j.onion/
Introduction to Deep Web http://tordirlew6f5gsjb.onion/
Zwitterion's Domain http://3il6wiev2pnk7dat.onion/
Confess Your Secrets: secretsxsrvlpawm.onion - You can anonymously confess a secret here that you've been needing to get off your chest. Some of the answers are rather disturbing. People can comment on them, too - so don't get offended if someone mouths off to you!
SoylentNews: 7rmath4ro2of2a42.onion - This is a news aggregate site where people discuss topics such as politics, science, and technology. I think the site is on the dark web to avoid censorship, and perhaps to attract a certain audience.
Question Everything: 3uxit3zzi4pu3iag.onion - A social networking site similar to Reddit, where people ask questions, and they are upvoted or downvoted by users The difference between this and Reddit is that the subject matter here sometimes revolves around hacking, encryption, drugs, and other "sensitive" topics.
Jotunbane's Reading Club: c3jemx2ube5v5zpg.onion - A digital book club whose motto is "Reading can seriously damage your ignorance." The reason that it exists on the dark web is to combat censorship and digital rights management (DRM).
Anonymous Cat Facts: 2v7ibl5u4pbemwiz.onion - Random cat facts. Hit a button and a new fact pops up. Why is it on the dark web? I have no idea.
Yay Ponies! ponieslzi3ivbynd.onion - Watch all episodes of My Little Pony: Friendship is Magic for free. This site may seem uncharacteristic of the dark web, but I think it's here to avoid "cease and desist" letters.
Anarplex: y5fmhyqdr6r7ddws.onion - (surface web address: Anarplex) "We host files & projects related to crypto-anarchy, phyles, agorism and related subject - and offer various services related to crypto-tribes and darknets. This is also the home of the #agora IRC server."
Shadow Wallet: shadowcbzen24qda.onion - A service for anonymizing bitcoins. Since bitcoin transactions are done publicly, sites like this provide a service for encrypting the transactions.
Social Media/Chat (WARNING: all of these sites are completely and utterly uncensored - there may be nudity, drug sales, weapon sales, scams, and other possibly offensive content. It's not for everyone.)
The Hub: http://thehub7gqe43miyc.onion/ - A discussion forum for a number of topics. Do not use your real name or information.
Galaxy2: http://w363zoq3ylux5rf5.onion/ - A social networking site on Tor. I'd recommend not using your real name, photos, or location.
ChatTor: Page on chattorci7bcgygp.onion - A chatroom service that touts itself as "100% anonymity, freedom, privacy, and security through WebSockets." I think it's more anonymous than other dark web chat services.
Random Chat: http://tetatl6umgbmtv27.onion//A... - Another chat service, kind of like Chatroulette. The difference with the Tor version is that people go on here looking to purchase illegal services, frequently.
Suicide Apartment: http://iidxap2xwq6arwbr.onion/pu... - This site isn't open to the public; you need some kind of voucher to be admitted, so you have to know someone who's already a member. You can visit their front page, however. By the title, I'd assume it's a place for those who are interested in committing suicide.
Blackbook: http://blkbook3fxhcsn3u.onion/ - The dark web version of Facebook, more or less. Also completely uncensored!!