"To link to any specific slide in a Google Docs presentation, click the "Start Presentation" button and copy the URL of the presentation view. Now replace the value of "start" parameter with the slide number (minus one)..."<--handy Google docs tip!
"But here are the best new educational features, in my opinion: Google Hangouts now offer screen-sharing, a sketchpad, and integration with Google Docs. That means that as you collaborate with others, you can view each other's desktops, you can view and edit documents together, you can scribble and share notes."
Changing the focus of Docs. Recently users were allowed to add any file to their Docs space - this project will make that a primary function, bit like MS Skydrive maybe.