I was introduced to RSS and Google Reader about two years ago and have found it to be a simple thing that makes a big difference in my day. When I open my email in the morning I also open Reader so I have it in the background. Many of the sites that I subscribe to are what you would expect of a technology school person. Also living in the South getting weather updates is also helpful. As a former science teacher and someone who is interested in the environment I subscribe to the the Louisiana Sea Grant site http://www.laseagrant.org/that is the educational arm of the University of Louisiana. It conducts research and educational projects on topics such as ecosystem restoration, flood protection, and sustainable foods from the sea.
In one of our high school current events classes each student has an RSS feed will some news sites common to all and others by choice. It makes for interesting discussions.