How long has the guild finder tool been in the game? I think it's pretty slick. They could use some sorting options on the wizard, but man I wish that had been in the game from the start.
I logged into one of my alts last night that I haven't played in over two years, so I wasn't surprised to see him de-guilded. But then I noticed the guild finder, and after perusing the huge list for a few minutes I picked one that had a nice description to it (and had a lot of members too) and a minute later I was part of a 432 member level 25 guild that I'd never heard of before. And it actually seems like a fantastic casual guild. Good people, interesting guild chat, even did an all guildy run of Blackfathom Deep.
I could almost have fun just petitioning new casual guilds now and then by the guild finder tool just to experience new people and players. Seems like a great social tool for the game.
Man, so much is new in the WoW. I do need to find a way to make lots of gold though, I can't even afford to buy my flying skills, lol.