I've been using RSS for quite some time. I used to have a Bloglines account, but switched over to Google Reader some time ago. I love how it integrates into my iGoogle page. I use my iGoogle page as my home page on all my computers and love having everything at my fingertips.
Since I already use iGoogle, I checked out NetVibes. One big thing I noticed immediately is the ability to make my page public. That could be really useful for my library. My iGoogle page is very personal, and includes links to all kinds of things--Facebook, Twitter, email, bulletin boards I read, my banks, personal and work blogs in my feed reader--the list goes on! I like the idea of a public space and a private space. Netvibes might be able to fill this public space niche for me quite nicely.
Over the course of the summer, my school is leaving our existing web platform and migrating over to BlackBoard for our classroom web pages. I can't really visualize how this will work for the library, so I am investigating other alternatives. I can see Netvibes fitting in somewhere--I just don't have the big picture yet.
A few things that are in my feed reader:
Paige Jaeger's LibraryDoor
Joyce Valenza's Neverending Search
Buffy Hamilton's UnQuiet Library
Doug Johnson's Blue Skunk Blog
Steve Danna's Race to the Top Reflections
Stephen's Lighthouse
Lindsay Cesari's No Shhing Here
