Ames Area Amateur Astronomers - Ames, Iowa
Cedar Amateur Astronomers - Cedar Rapids, Iowa
Driftless Stargazing LLC (John Heasley)
Iowa County Astronomers - Iowa County, Wisconsin
MMSD Planetarium (Madison Metropolitan School District )
Net of Stars Blog (Dave Venne)
Space Place (University of Wisconsin)
Space Science and Engineering Center (University of Wisconsin)
Starsplitters of Wyalusing State Park - Grant County, Wisconsin
UW-Madison Astronomy Department
Washburn Observatory (University of Wisconsin)
Wisconsin Astronomy (Jeff Setzer)