I’m a big fan of using technology to enhance teaching and learning. I read a blog called “Teach Paperless,” which often has great ideas for teachers who wish to incorporate more tech into their teaching.
Here’s a recent post with some excellent fundamental teaching resources (most, if not all, free):
http://teachpaperless.blogspot.com/2011/03/tools-to-go-paperless.html.
The list includes GoogleDocs and Calendar of course, but also some others that you might not think of right away.
A good place to start.
