This summer, 2006, Game Studio staff (youth and adults) will visit the Minneapolis Public Library to lead game-making workshops for youth.
Here's the description of the workshop:

Gaming Studio
Create a video game, animated story or interactive art. The Science Museum of Minnesota's Learning Technology Center will be holding a series of Saturday workshops in the Central Library's Best Buy Technology Center on how to use Scratch, a new programmable toolkit from the MIT Media Lab that you use to program your own game or animation. For more information or to sign up, call 612.630.6025 and talk to Christy.

You can look up the dates of the series here