http://dndtools.eu/
The site was VERY helpful (having to browse 10+ manuals to find a feat is boring as hell): is there any way to "recover" it?
It sucks that one is down, but for better or worse, http://www.d20srd.org/ (http://www.d20srd.org/) and http://www.dandwiki.com/wiki/ (http://www.dandwiki.com/wiki/) are still around, for now.
I used to reference CrystalKeep for a whole bunch of things and it went down but someone managed to save the content. You can find it over here: http://chet.kindredcircle.org/pdf/ Dunno if that'll be any help or not.
http://web.archive.org/web/20130805064202/http://dndtools.eu/ :v