Wirebrain

Wirebrain is primarily a mirror hosting website that also includes patches for World of Warcraft in a plethora of languages.

Tools
Since the release of Wrath of the Lich King, wire brain has had a historical listing of all of the patch notes, as well as a copy of all the achievement listings with their criterion. This includes a historical comparison tool for showing the differences between versions of the World of Warcraft achievements. Wirebrain lists all of the Beta, PTR, and Live revisions of World of Warcraft.