japanese.stackexchange.com just launched its public beta. It's basically a Yahoo! Answers sort of website, except it's all about Japanese. If you're familiar with Stack Overflow or other Stack Exchange websites, you know what to expect. Check it out!

It looks nice, thanks for letting us know. I've browsed a little, and it seems that questions not "directly related" to the Japanese language are tagged as off-topic. For example, it's considered off-topic to ask about Japanese learning tools. Something to keep in mind before asking questions.