Q&A site FunAdvice has one feature that's unique (as far as I know): a widget that lists your outstanding questions, or latest answers, or areas of expertise.
Faqqly, the social network that wants you to get off your butt
Get life's little mysteries solved with PicAnswers, a Q&A service focused on photographs.
Is the acquisition of Yahoo by Microsoft enough to overthrow the reigning champ, Google?
Get questions answered for you on the go with Mosio. The service now uses Twitter to help you ask and get questions answered.
Microsoft's new search, maps come to life
Got a question? Try out Fluther, a new community Q&A site. Oh, and if you're wondering what that name means, it's the technical term for a group of jellyfish.
Facebook's latest service lets its users ask questions to their friends, as well as the Facebook community at large. But how does that compare to what the competition is already doing? We look at seven competitors.
Google Answers shuts down its pay-per-response Q&A service.