The social Web certainly shows that there's a lot of curiosity out there. Q&A services – Quora, Aardvark, Yahoo Answers – are hot, and now Facebook is testing its Questions service. ReadWriteWeb co-editor Marshall Kirkpatrick says that, once the bugs are out, the service will be "a very big deal ... a net win for the human experience." Why? "It might be tempting to assume that Facebook … [Read more...] about Is Facebook Questions ‘a very big deal’?