Link: Official Gmail Blog: 2 hidden ways to get more from your Gmail address.
I was scrambling last night during my preso to find this post, which turned out to be in the official Gmail blog, not to be confused with the official Google blog. This post explains ho to make an alias to your own Gmail account, which is one way to create accounts for your students.
Also, make shure you check out Alec Courosa's screencast of how to do this.
