Week 2, Thing 5
I found these comments interesting - comparing the different photo services. If you would like to read these short discussions, you might be better able to decide which tools you want to use with your students.
http://mcdevzone.com/2008/07/02/smugmug-vs-flickr/
http://www.jasonmorrison.net/content/2007/picasa-vs-iphoto-vs-flickr-vs-panoramio/