http://robocoach.websitetoolbox.com/post/List-of-colleges-still-looking-for-2013-players-(-Any-Level)-5979856?trail=30#8
Just started, one response so far:
Avila University NAIA in Kansas City MO. looking for 2013 Pitchers, Catchers and middle infielders.
Looks like they need a whole team.
If the lists cross polinate, maybe it will become useful. Rayburn hasn't done a list since 2010 grads:
http://www.spysoftball.com/recruiting/2010-unsigned-seniors