I was thinking a great feature for the wiki would be a tabbed search between D1, 2, and 3.
As of now, if you're searching for something, you can get results for any of the 3 games. I think it would be a lot better if there was this option, especially for when D3 comes out, when people are mainly concerned with D3.
PlugY for Diablo II allows you to reset skills and stats, transfer items between characters in singleplayer, obtain all ladder runewords and do all Uberquests while offline. It is the only way to do all of the above. Please use it.
Supporting big shoulderpads and flashy armor since 2004.
PhrozenDragon - exactly. It would be a big (huge) project just to separate all the information into the respected database. But from my point of view, that's the easiest way. The only other way I can think of would be to modify every page and add a "tag" (ie. for Diablo 3, it could be "Diablo3SearchTag") and then filter the search by that tag.