I have had an idea about these, but this course allowed me to sit and learn about them. I especially liked the video at Blip tv that explained what RSS feeds are. I can see using this to find the latest children's books for the library- with so many classes, I never have enough time to read all of the reviews, so now the reviews come to me.
One cool thing I found on the School Library Media Monthly feed was the youtube video of the presidents morphing from one to another. If you get a minute, check it out!
http://www.google.com/reader/shared/15032014236609542617?hl=en