Here are some other sites dedicated to visiting ballparks and minor league baseball:


Baseballparks.com
Digital Ballparks
Baseball Pilgrimages
Minor League Baseball

Baseball Ink
Baseballguru.com
SABR - Society of American Baseball Research
Professional Baseball Player Database
Attheyard.com
A fan's guide to the Midwest League
San Francisco Seals
Astroland
Our Sports Central
Blue Ridge League
Minor League Baseballs
Boston Red Sox Timeline