I see a few great uses for this site.
- Simple way to run your office or social pools. NBA, MLB, NFL, regular seasons, playoffs, etc
- Extremely easy way to take on the predictions of national experts. For example, here is a link to their MLB Pundit page: http://www.sporcle.com/group/?gid=24. So basically you can go in before the 2008 season, enter your predictions for each division and see how your picks stacked up against guys like Gammons, Stark, Olbermann, etc.
For future reference I'm going to put a link in our resources area.