NOTE: Directories will go down. Don't ask me to update this, because I'm not going to. Just skip over those.

Ebooks:
http://imcs.dvfu.ru/lib.int/docs/Programming/ (books on programming, obviously, but TONS of them)
http://users.net1.cc/pafkata/personal/Scanned/docs%20-%20ebooks/ (Check C++ subfolder, there’s a lot there, but mostly stuff on webdev and seduction)
http://intersci.ss.uci.edu/wiki/eBooks/BOOKS/ (philosophy)
http://hudsoncress.net/hudsoncress.org/html/library/ (philosophy,
http://djhavor.dyndns.org/books2/ (3500 misc folders, each has multiple subfolders usually. Get it while it's hot!)
http://savebook8.com/download/ (2000ish technical ebooks but with a small watermark at the top of the page in each.)
http://www.rmsproductions.co.uk/kindle/Kindle/Kindle/ (2000ish misc Kindle, mostly fiction)
https://murdercube.com/files/ (ebooks on computers, electronics, science, etc)
http://www.tranceattic.com/ebooks/ (780some pdfs on CS/programming)
http://roest8.home.xs4all.nl/mike/boek/E-books/ (490ish random techie-ish pdfs)
http://wordbook.xyz/books/ebooks/ (100 on IT/programming)
http://www.politicalavenue.com/10862/ (books about learning languages, but it looks like it's from the 90s)
http://platonic-philosophy.org/files/ (it's philosophy)
http://wafaa-sherif.com/new/ar/wp-content/uploads/2012/11/ (the stock market)
http://www.slnconline.com.ng/books/MOTIVATIONAL%20BOOKS/ (motivational books, duh) http://www.naturalthinker.net/trl/texts/ (philosophy stuff, seems interesting)
http://ftp.sustech.edu/Books/ (IT and sysadmin stuff, for those interested)
http://file.fromanywhere.com/books/ (programming)
http://t2mh.com/python/ (all the python books, all of them)
http://vic.kim/downloads/01%20Completed/ (smorgasbord of books, TV, and e-courses. Noteworthy: all of Futurama, a Railscast episodes collection, and a ton of books on Ruby (Find the directory with 111 in the name).)
http://www.digitaldreamart.com/storage/books/ (a bunch of fiction, mostly)
http://www.winnow.veeshanvault.org/files/ (for anyone into comics, prepare to meet your hard drives' Doomsday)
http://sacredartichoke.com/latarsha/ (misc)
http://floobynooby.com/pdfs/ (anatomy / drawing)
http://mehdi.ca/ebooks/library/ (nonfiction and some sci fi)
http://index-of.es/ (hacking / cryptography / programming / shady shit)
http://hudsoncress.net/hudsoncress.org/html/library/ (a bunch of stuff)
https://drive.google.com/folderview?id=0BzQJzw2V271wYTJna0VoMVZVaXc&usp=sharing (comics)
https://www.frikfry.com/books/ (open Calibre server)
http://cdn.preterhuman.net/texts/
http://www.teamfackin.com/m/altaria/Glorious%20ebooks/Library/
https://sin.thecthulhu.com/library/ (everything you need to rebuild civilization - not much /g/ stuff there)
http://www.armchairpatriot.com/Cookbooks/ (cookbooks)
http://download.adamas.ai/dlbase/ebooks/VX_related/ (crypto and viruses)
http://books.adept-ic.com/ (check the hadoop directory, a lot in there. Math stuff, programming, etc.)
http://roest8.home.xs4all.nl/mike/boek/E-books/ (linux and seduction)
http://www.americanradiohistory.com/Popular-Electronics-Guide.htm (every Popular Electronics from 1954 to 2003)

Music:
http://muteam.fm/dl/ (large as FUCK)
ftp://simant.ru/Multimedia/mp3/Lettered/ (sorted by letter)
http://lexs.blasux.ru/music/big/ (electronic mostly)
http://chriscargile.com/music/music/ (pretty good)
http://blogs.hatrix.fr/musiques/ (metal mostly)
http://www.extraordinaryebooks.com/MP3/ (kinda mediocre but including this anyway)
http://simant.ru/pub/multimedia/mp3/%5b-=Foreign=-%5d/ (pretty small collection, might as well include it)
https://docs.google.com/document/d/1tCc3AmTTThLGYmA94zphSgSR_Z32edwcYB2Ie1xijws/view (this one isn’t a directory but it has soundtracks for a bunch of video games, take a look)
http://dl.iheartmusic.ir/Files/ (for anyone with utterly pleb taste)
http://inkedhosting.net/djlibrary/MP3s/ (it’s for DJs, so mostly stuff for teens)
http://mhoerner.dyndns.org/ (one of the best in here, pretty large collection, pretty diverse)
http://dlna.digitalk7.com/mus/ (they don’t have electronic, rock, or metal, but hatrix, mhoerner, and blasux covered those pretty well.)
https://lsd-25.ru/uploads/ (holy shit, so much)
ftp://c-50-186-99-31.hsd1.ut.comcast.net/shares/USB_Storage/My%20Book/Music/A-Z%20Music/ -- WARNING, ONLY GET MP3s. IF YOU WGET, MAKE SURE YOU USE THE --REJECT=.SCR FLAG. IF YOU DO NOT, YOU WILL GET A COIN MINER TROJAN ON (AT LEAST) WINDOWS SYSTEMS.
http://hcmaslov.d-real.sci-nnov.ru/public/mp3/ (Russian stuff, metal, and hard rock)
http://www.panicstream.net/streams/ (dunno what to classify these as)
FloatingWorldWeb (pretty obvious):
	http://floatingworldweb.com/MUSIC/CLASSICAL/@byCOMPOSER/
	http://floatingworldweb.com/MUSIC/@ELECTRONICA/
(world music, rock, blues, folk seem to be dead, but I contacted the webmaster, may be back up soon)
http://afewbitsmore.com/albums/ (a diverse collection)

TV Series:
http://dl6.nightsdl.com/TV.Show/ (western)
http://yukinoshita.eu/ddl/ (anime out the wazoo, not sure about quality)
http://tv.dl-pars.in/
http://dl2.my98music.com/Data/Serial/ (TV in 480p)
http://dl2.film2movie.info/serial/
http://crusader.pp.ua/anime/ (anime in 480-720p, not sure if any higher)
http://dl.farsimovie.net/Serial/ (480p, may have subtitles in Farsi? I hope not.)
http://desu.ru/ (anime clearly organized by a sadist, seems to be in 720p)
http://dl5.nightsdl.com/TV.Show/ (TV in 480p-720p, depends on the episode)

Movies:
http://hmd.naturalbd.com:81/
ftp://cpe-70-113-119-7.austin.res.rr.com/Cloud_Disk/Movies/ (tons of webrips, dvdrips, and blurays)
http://45.114.180.220/ftp/HDD1/Movie/English/
http://dl8.freeupload.ir/azar/?SA (movies changed from Bluray to 720p)
http://sv.dl-pars.in/250%20Top%20Movies/ (tons of the best movies)
http://content.n3tw3rks.com/Movies/ (lot of good ones and in really high def)
http://dl.dlroozane.ir/dlroozane/94/10/Film/ (some good movies in 480 or 720)
http://dl5.nightsdl.com/admin/Film/2009/ (films sorted by year -- replace 2009 with the year you’re looking for)
http://217.219.143.104/9101/Animation/ (kids movies)

Console Games:
http://www.watters.ws/rpms/roms/ (SNES, NES, Genesis, and some others)
http://www.jarnot.com/misc/roms/ (GBA and some SNES)
http://schnivasdomain.greatlakeshosting.com/Emureactor/Nintendo%2064/ROMs/ (N64)

Portable Games:
http://poladi.com/Krishna/ (DS games)
http://3sf.joshw.info/ (3DS games, not updated since mid-2015)

Phone Apps and Games:
http://kryptique.net/Downloads/All%20of%20The%20Best%20Android%20Game%20Emulators/ (Android game emulators)
http://movel.dyndns.org/android/Android%20Apps/Apps/ (Android apps)
http://dl2.melidl.com/android/ (Android apps)
http://movel.dyndns.org/android/Android%20Apps/Apps/
http://movel.dyndns.org/android/games/ (Android games, duh)

PC games:
http://dl5.downloadha.com/hosein/Game/ (PC games, I think)
http://pc.joshw.info/ (PC games, not updated since 2015)
http://paperlined.org/games/pc/ (MORE PC games)

Unix stuff:
ftp://ftp.lip6.fr/pub/ (stuff for Unix/.*BSD machines)

Doujins:
http://lovehentaimanga.com/hentai-manga/
http://s.d-smart.jp/
http://www.odiasex.in/menu/Sunny%20Leone%20Videos/Mp4%20Videos/Collection%2001/

NSFW pics (general note: pictures of ladies with boobs. I’m too bored to write more.):
http://temp.xogogo.com/
http://www.bigbreastarchive.com/images/
http://memcontent.freshchecks.com/content/content/
http://flv69.jav13.com/shipin1/
http://xxx.l4l.pw/
http://art-nude-girls.com/scj/thumbs/galleries/
http://www.thegangbangauditions.com/trial/content/upload/
http://files.got2get.net/mirror/en.thisbitch.info/
http://www.rikitake.com/main/photo/
http://www.blog-erotico.com/wp-content/uploads/
http://damn.insanika.com/wp-content/uploads/
http://www.cocotasonfire.com/wp-content/uploads/
http://besthotgirlspics.com/wp-content/uploads/
http://www.osmachistas.com.br/wp-content/uploads/2016/04/
http://sexpornerotica.com/wp-content/uploads/2016/04/
http://naughtybits.us/wp-content/uploads/
http://www.sexnerd.com.br/adulto/wp-content/uploads/
http://www.hugenaturalslovers.com/wp-content/uploads/
http://hotfmodels.com/wp-content/uploads/
http://onlypetites.com/wp-content/gallery/
http://www.lewdfruit.com/wp-content/uploads/

NSFW videos (general note: videos of ladies with boobs. I’m too bored to write more.):
http://www.odiasex.in/menu/Sunny%20Leone%20Videos/Mp4%20Videos/Collection%2001/
http://xxx.l4l.pw/rtorrent/xxx_p2p/
http://site1.thenetheads.info/jetstore1/OshantO/apr2015/lol/
http://flv69.jav13.com/shipin2/ (not JAVS)
http://flv69.jav13.com/shipin3/ (not JAVS)