Great pics of many players, both Major and Minor Leaguers from Larry O.
Express Homeplate- A site dedicated to the Texas League's Round Rock Team.
Minor League Ballpark Photos- Just what the name says.
At the Yard- Good stories about, and reviews of, players.
Travelers Guide to the Minors- State by state listing of minor league teams.
At the Plate- Lots of info about players and baseball in general.
On Deck- A little different from the old On Deck... they have a unique system for rating players.
Strike Three- Tons of reports about Minor Leaguers.