Google intros Q&A service

Macworld: News: Google intros Q&A service: "Google Inc. on Thursday began delivering factual answers for some queries at the top of its results page, to save users from having to navigate over to other sites and look for the information.

For example, if a user enters the query 'Portugal population,' Google returns the answer -- 10.5 million -- along with a link to the Web page where the information came from, which in this case is the population page of the U.S. Central Intelligence Agency's Factbook."