Suggestions?

I have been working on my aggregator tutorial trying to think of ways to spruce it up and add some content to it.  I so far have one idea of using it as an online textbook that is up to date .  Schools would not have to worry about buying new textbooks because they would always have the latest edition. I thought about maybe saying it could be used to organize classroom events and postings about what the class was doing.  Any suggestions are welcome and the more I get the better off I will be.