The official site of the NCAA basketball championships chronicles what has happened, and outlines what is to come. A site similar to CNN Sports Illustrated, the ESPN effort is hosting a game for visitors to predict tournament winners. Prizes include trips to the championships. SportsSleuth Sign up for daily e-mail reports on the teams you want to follow. Getting experts to answer obscure questions is becoming easier all the time on the Web.
Some sites offer a lone expert, while others offer thousands.
The zero was introduced in Sumarian culture 5,000 years ago. And in biology, at least officially, there's no such thing as devolving. How Stuff Works Animated graphics help show how car engines work. Computer scientist Marshall Brian answers a new question every weekday from those submitted by Web visitors. The site is maintained by Louis A. Bloomfield, physics professor at the University of Virginia.