Looking for a web-based news aggregator? You and your users may be interested in this one: Waggr http://www.waggr.com . I had been using a desktop-based aggregator, but like most librarians, I use many computers during the day. Waggr has been great for me, since it is so easy to use. The registration is free, and pretty simple - just your email address and a password, and you are set. Take a look at it, and consider it the next time your users ask about the best way to keep up with your library's blog.