Earlier today Google announced a few updates to Google Docs that should prove to be quite handy. The first update that should be handy is an improved resizing option for tables in documents. Users can now resize columns and rows by simply clicking on a line and dragging it. The other update that students and teachers should appreciate is a new option for adding words to the dictionary. Now whenever a word is marked as misspelled, users can just right click on it to add to the dictionary or correct the spelling.
Here are some related items that may be of interest to you:
Google Earth Across the Curriculum
Free 33 Page Guide – Google for Teachers
Beyond Google – Improve Your Search Results