One that I know of is:

http://www.jimfeist.com/cbbstats/fastfacts.aspx

What is your favorite site that has a free game simulator?

I know it's pedestrian but I actually do look at the accuscore info on cbs site. More for nba than football

Never seen it. where exactly can i find it?

Go to the scoreboard page, at the bottom of each matchup there is a tab marked preview. That brings up some stats, a writeup and the accuscore screen toward the bottom. It's not the most comprehensive thing, but it's worth a look once in a while.