Google Answers, the service where you could ask questions in exchange of a sum of money, is now officially dead. "We considered many factors in reaching this difficult decision, and ultimately decided that the Answers community's limited size and other product considerations made it more effective for us to focus our efforts on other ways to help our users find information."
The problem? While Google Answers is almost invisible, Yahoo Answers is a big success, produces results for many search results page and has a big community. The big difference between the two services is that Yahoo Answers doesn't involve money: no one pays or gets paid. While Google's researchers give more detailed answers, Yahoo uses the advantage of having a strong community" and sorts the good answers.
So what happened to Google Answers?
[Full story at Google Operating System]