Experimenting with Picasa

I am trying out Picasa, since I'm already familiar with Flickr. I'm not nervous, exactly, but I am out of my element. It is rather easy to get started, and sending a photo right to my blog from Picasa was very easy (I liked that). What I think would be a really cool and authentic activity would be to have students do a comparative study of the photo sharing sites (Flickr, Picasa, and Photobucket). I'm sure that critical comparisons have been done already (I'll look that up in just a moment), but it would be an interesting project to do with a class. The students could create their own rating scales, and test the sites according to the criteria they have set. They could journal their discoveries in a blog, and invite other photographers to comment on their findings. Perhaps groups could present their findings as if they are trying to convince their school which photo sharing site they should support.