Thanks to an excellent question by Leslie Fitzpatrick, we have found some cool (and free) software you might like. If you want to create an online quiz or practice sheet and have your students' results e-mailed to you, try one of these:
Question Writer: http://www.questionwriter.com/free-quiz-software.html
We have only looked at the sites and haven't tried them yet, so if you check one of these out, put your comments here!!! Your students won't need their own e-mail address...they just click on your link, respond, and click "submit" - sounds useful!
By the way, I just learned that every teacher has access to all student network folders! Did you know that, too?