billsportsmaps.com

The International League is a Triple-A league, one of the two top-ranked minor leagues in the Major League Baseball farm system. [The other Triple-A league is the Pacific Coast League.]
Reigning champions are the Durham Bulls, the top minor league affiliate of the Tampa Bay Rays. The Bulls swept the Scranton/Wilkes-Barre Yankees in 3 games  last September, to claim the Governor’s Cup.

Here is the official site of the minor leagues,  Minor League Baseball.com… MiLB.
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On the map, I have ball club profile boxes which contain the franchise history of each team (note- this is not the same as the minor league baseball history of each city, because just as major league teams (ie, franchises) can move from city to city, so too can minor league teams). I also have the full lists of MLB affiliations of each team, including the logo of each minor league team’s present-day parent-club.  Then there are a couple photos of each team’s ballpark, with capacity and opening date listed.

At the lower left on the map page, there is an article on the roots of the International League, and then brief histories of the three oldest teams in the league…the Rochester Red Wings, the Indianapolis Indians, and the Toledo Mud Hens. 

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Below- 2009 average attendances of International League teams, with the ball clubs’ current logos and home caps.

Thanks to Little Ballparks.com {click here}.   Thanks to Ballpark Reviews.com {click here}.

Thanks to the contributors to the pages at en.wikipedia.org {click here (set at International League page)}.  
Thanks to http://international.league.milb.com/ , for information on the early history of the league.