Journal: Google Answers Successors?

Since the popular Google Answers service was shut down, a host of similar services aiming at answering user questions - either automatically or using `crowd wisdom' techniques, i.e. human volunteers - have emerged.

Contenders include Answers.com (and their recent acquisition BrainBoost), AskAlexia, Amazon AskVille Lexxe, Lycos iQ, justanswer, MasterAnswer.com, Microsoft's Live QnA, Wondir, and Yahoo! Answers.

I wonder which sites are the favourites among ./ readers?