More activity in the Q&A space. Amazon released the beta of askville, their question and answer website, at about the same time that Google Answers closes up shop.  Of course they aren’t strictly comparable. Google Answers was a "professional" Q&A board with approved contractors answering questions.  (There is a good article about GA on Wikipedia.) 

askville says it is using Amazon’s Mechanical Turk service to "help provide good quality answers".  I’m not sure how that is working out but nice to see questions & answers about it.