The Wisconsin Historical Museum has several online collections. Like Google Images they can be used in creative ways to make history come alive. Currently there are exhibits on quilts, dolls, moccasins, clothing, ceramics, and curator's favorites.
I would be curious to hear if and how teachers have used these collections in their instruction. We recently purchased Glogster at Schenk, this is the exact kind of resource that could be utilized for student Glogs.