Collaborative Word Processing
a review of PrimaryPad
Multiple users can edit the document at the same time with changes reflected in real time. Each person's contribution is highlighted in a different color.
Unlike programs such as GoogleDocs, with PrimaryPad no log-ins are necessary. It is also much easier to instantly see what each student's contribution to the document was. There are buy-up options on the site, but the free version is adequate for most things you would want to do in your classroom.