CYBERSPORT : OPEN SEASON ON THE WEB.

Byline: Tom Hoffarth

A little site-seeing in cyberspace:

U.S. Open tennis: For the fourth straight year, U.S. Open tennis enthusiasts have the official IBM-juiced site (http://www.usopen.org) to go exploring for stories beyond the volleys.

The new toys to play with this year are a user-controlled ``OpenCam'' Web camera that's mounted on the top of Arthur Ashe Stadium that allows users to pick their own view; more chat sessions and forums; a player postcard section and a spruced-up Java scoreboard that shows real-time point-by-point score updates from every match and for every player.

Last year, the site recorded more than 60 million hits.

The science of baseball: A project of the Exploratorium in San Francisco, this comic-book designed site (http://www.exploratorium.edu/baseball) designed for kids of all ages explains things like why Tom Candiotti's knuckleball doesn't spin, how baseballs travel farther at Coors Field and where to find the sweet spot in a wooden bat by tapping it with a hammer.

The museum has similar sites for hockey and cycling. The baseball site launches Tuesday.

More fantasy football: There are about 150 of 'em out there, so don't expect a lot of huge differences in the way the games are played outside of the five we listed last week.

But another one of interest might be Electronic Arts, the software company that leads everyone in sports-created video games, which has created a fantasy site at the EA Sports Edge (http://www.easportsedge.com). It's free to enter through Sept. 16 and then costs $19.95 thereafter.

The site has an edge in providing some of the esoteric player data to fantasy players that it uses in constructing its video games such as the Madden Football series.