I'll second, third and fourth that too! Yahoo Answers does work. There's different categories out there, check out the one that applies to your blog/site and answer questions and post the url to your blog/site and watch what happens.

There's a lot of folks out there with questions about different things and if you notice, the answers are very general - depending on the topic. Bring attention to your blog/site and make yourself stand out! Make them come to your site/blog for their answers.

Renee