I didn't see any other groups out there (correct me if there's already one set up). So, I created not one, but TWO college pick 'em groups on Yahoo! Sports. Here's the info:
Top 25 games group: deadline 5 minutes before 1st game, drop lowest week, picks are against the spread.
Group ID: 21224
Big 12 games group: deadline 5 minutes before EACH game, drop lowest week, picks straight up.
Group ID: 21229
To join, go to Yahoo! College Pick 'em HERE.
Good luck, and WRECK 'EM!