I like the rivals site, sebaseball.com.
Scout.com and rivals.com should each have a site for UNC, with message boards. Sometimes parents identify themselves. When the season heats up, fans taunt each other, it's really a riot sometimes.
The ACC has a great website, no message boards but there you can get all stats on players from every team and press releases, player/pitcher of the week, etc. The content is pulled from the teams websites. ACC live allows you to watch conference games for a small fee, you can sign up for your son's team only or all of the games in teh confereence, it's very inexpensive. We had no clue at first (year) and listened to games on yahoo, paying, until we realized that there was a Tiger network to listen to, streaming from the local radio station for FREE.
I know this is more than you asked, but you will have plenty to keep you updated when season begins and still be able to post here on the HSBBW.