I googled "collaboration in the world language classroom" and found the following site: http://teachpaperless.blogspot.com/2010/05/short-presentation-on-using-google-wave.html There I found a very nice presentation of using "Google Wave" as a collaboration tool. A colleague and I are also using glogster.com and weebly.com to have our two classrooms in different school districts blogging back and forth in Spanish.