Posted By:
Max WederSomewhat as an aside, baseballreference.com appears to be adding minor league stats, as they indicate they have records going back 16 years to 1992 (well, it's a start...not sure how far they can or will go back)
I haven't checked out the site enough to determine whether you can search a player like on the major league site.
http://minors.baseball-reference.com/
Max