Here is an interesting link if you have kids:
I came across this resource when I saw Allison Druin give a Tech Talk at Google: If Google Becomes Giigle. In the talk, she was mentioning the Human-Computer Interaction Lab, which partnered with kids to determine things that worked best for them. The amazing thing to me about working with kids is the ability to listen to them and understand their needs as far as computers go. Think about the number of people/companies that cannot listen to adult users and adapt software to them!
Another interesting thing about her presentation was the fact that she used a different presentation tool. The tool is called KidPad, which was developed by the lab. I noticed that it is available for download for noncommercial use, but it only works on Windows.