looking for *chan related site, so far i have found:
http://vidyagaemawards.com
http://123chan.org/rimages (rage comics, this fucker was committed doa)
http://www.4chanhouse.org
https://www.4ct.org (pretty shite desu, but hey)
http://analblaze.com (has some 4chan flashes somewhere, i forget)
http://dir.vyrd.net (or whats left of it, lots of good stuff here, go on the wayback machine for the screencap archive, some of it was saved there)
https://web.archive.org/web/*/images.mackanzoor.com (apparently down since 2012, but may have been up for longer seeing as the vyrd.net admin only went MIA around oct of last year, lots of images, don't know whats left doa)
http://macrochan.org (just an collection of images, currently abandoned by who ever owns it possibly since 2013)
http://bibanon.org (a group of people collecting "internet folklore", mainly *chan culture, has a wiki on github dating back to arab spring on an absolute fuck ton of info, various pages are outdated, but sending a newfag here would be one of the first things you might want to do besides telling them to lurk moar)
http://tanasinn.info/wiki/Complete_History_of_4chan (timeline of happenings that go on in 4chan, various anons constantly add new info)
http://world2ch.org (info/wiki about the early days of 4chan and its parent chans)
http://web.archive.org/web/*/chanarchive.org
http://web.archive.org/web/*/4chanarchive.org (last two are more or less the same site, basicly the first major thread archive, going back too 2007, threads were archived based on popularity/upvotes, living up to the "old" method of 4chan culture)
https://nik.bot.nu
http://4walled.org (theses are wallpaper scrapers who get their images from 4chan boards and other sources, both obtain a bulk of images from a previous site that did something similar, although the name escapes me now)
http://wiki.magicalgirlnoir.com/ (site which host info on an (apperently, idk, i don't browse /tg/ myself) very popular series of threads)

more coming