I have enjoyed exploring RSS feeds and spending the time to set it up properly. The advantages of having all the latest info coming to you is so much more convenient that trolling thru looking for stuff yourself. However I think you must be discerning as you could end up with too many feeds coming in and end up spending too much time browsing through them. I chose these sites for a bit of variety that covers some of my interests. We use RSS feeds with feedburner at the library from our events calendar to our library blog and also back into our website to create a scrolling calendar.

Saucy Onion
Bloginity
720_saturday_breakfast
Library Technology Guidelines
Time