www.exploratorium.edu/baseball/index.html "Professional baseball is played at the edge of biological time," the Exploratorium says, "just within a human's ability to react." The pages then go on to demonstrate, not explain, how the pros cope with earning a living on the edge. Games allow you to learn whether you can hit a major league fastball, or how you might adjust your swing when a knuckleballer is relieved by a flame-thrower. Lots of Flash.

nytimes.com/pages/sports/baseball/index.html/0402e The beat writers here are a very big reason why New Yorkers are considered among the most knowledgeable fans. And their writing gives the impression that they've stepped off The New York Times' pedestal and into the pub to impart their wisdom. Dig up Buster Olney's article on Ichiro from last week and you'll gain some knowledge about the budding superstar's art that'll make your next trip to the ballyard all the more enjoyable.

www.baseballhq.com A bunch of sabermetricians (mathematicians who fill their noggin only with baseball data) forecast player performances and provide what just might be the ultimate in insider info for fantasy managers. Then again, only a moron who wears his plastic pocket protector to the stadium would actually convince himself he can predict how a ball is going to come off a players' bat 650 times a year.