Google for Educators

I played around on the "Google for Educators" site for a while and there are quite a few good tools. And now for the questions:

1) Name 3 tools that I might want to use with students:

1. Geo Education
2. Google Books
3. Google Docs

2) How do I think I would use these tools?

Geo Education is an awesome tool that works off of Google Earth. It is good for finding facts about target areas of the world and also shows how different places actually are. Would work well for quizzes, short assignments, etc.
Google Books is a tool that I often use myself. It is an excellent source for finding primary and secondary sources for research projects.
Google Docs - well, that will be explained in answer to the next question.

3) Name one advantage of using Google Docs with students.

One advantage of Google Docs is that there is no need for memory devices of any sort (e.g. memory sticks or discs) or paper, which makes organization easy for the absent-minded types (like myself).