Okay, so Google Maps is not part of Google Apps. However, it is still possible to use this tool to share students' work. This next part of my tutorial series, Google Apps for the Class shows you how to take students' Google Earth folders and files, and bulk upload them to a Google Map or My Map.
I have middle school kids and would not sign them up for regular Google accounts just so that they can use the My Maps feature, so what I am doing here is just using my own Google Maps account. I know that there are other ways to do this, but I found this way just fine. Hope it gives you some ideas. Enjoy!
Oh, and here is the link to my students' completed Olympic Venues Map.