At the most basic level the Facebook Questions product, currently being tested in-house at Facebook and as part of a private beta, is a system that will be included in the network to allow people to ask simple questions (something that already happens a lot through status updates).

Friends and those within a friend’s own network can offer a response to the question, with each answer then aggregated on a page where other users can simply click on a tick or cross icon to state whether it was valuable or not.

Read the full story at http://www.tnooz.com/2010/05/31/news/facebook-makes-everyone-a-travel-agent-with-facebook-questions/