I found out about Google reader at a tech conference recently (ICE). It has been awesome. I get all the updates on many of my favorite websites by only going to Google Reader. It is like a customized newspaper. You can subscribe to many different publications like your favorite newsletters, newspapers, and blogs.
Here are some of the things that I subscribe to:
Focus on the Family
Teachers Love Smartboards
The Whiteboard Blog
What is School 2.0
Bulls Basketball Update
How do sign up? Just get a free gmail account at www.gmail.com. This will sign you up for all of the google services. Once you have a Google gmail account then you just go to google.com and you will see some Google services at the top. Click on where it says more. You will see Reader as an option. Click on that and you will be ready to search for all of your favorite publications for free. Now when you go to Google Reader you will be able to see which of your sites have new posts. Check it out.