Why TES Texture Guide? Simple: I intend this to be a guide for all the TES games, not just Oblivion. I'm sure there might not be much demand for Morrowind stuff, since most of the folks playing it are well entrenched, but there are dozens of obscure (and really good) replacers for Oblivion; also, Skyrim is new and replacers are constantly being developed for it. TOTO had some really good information on it, and I've added links to discussions dev/akm made about things like QTP and other landscape replacers.
I've made the site open to all; you just have to register at Wikidot, just like working on the UESP Wiki, and the formatting is similar. I encourage people to post screenshots - I use a lot of replacers, but I don't have nearly all the stuff on this site, and I don't have the time or wherewithal to get screenies for everything. I put up a few screenshots http://testg.wikidot.com/oblivion:arch-misc to show off some things in my game.
Once I get back to Skyrim and start playing it again, I figure the rate of texture mods will have slowed down slightly, so I can start collating and adding those as well.
The site is still under development, so comments and (constructive) criticism are welcome.
Link: http://testg.wikidot.com/main