There are a few big question-and-answer sites out there--including Microsoft's QnA and Yahoo Answers--which partly explains why the small Q&A site FunAdvice.com has only 26,000 answers on it, even though it's been online since 2003. But 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 (your choice). See my question widget at right.
FunAdvice doesn't rely on a points system like the big sites to encourage participation, nor will it help you monetize your expertise like Ether. And it's not real-time like Qunu. But it's a fun little service and could be useful to add some bling to your blog or social network page.