Social bookmarking is a great way to get all your information organized. Teachers are able to post the reading assignments in a specific location, just as was done for this class on Diigo. this allows the students to access the required assignments, while incorporating technology in the classroom. I have not really thought of using this yet because I figured it was too much work. Since I have now done this for this class, it was quite simple and didn't take much time at all. This will help me to be more organized with the sites I visit frequently.
My list is at diigo-http://www.diigo.com/user/jen726.
The possibilities are endless for using excel in the classroom. I would use it to help students track the weather (temperature, rainfall, snowfall etc.). Have students create a spreadsheet to track there grades on their own. Excel can also be used to create timelines for various topics. It can also be used to track the student's favorite baseball teams batting averages in math class. They can also use excel to start a budget for their money.
There are many other ways to use this and, I believe, once I'm actually in the classroom, I will use them.