Check out this SlideShare presentation by Gladys Baya, with an embedded YouTube video (below). It introduces RSS feeds and a tool for aggregating them, Pageflakes.
Vance Stevens, who moderated an Elluminate Live! session for a TESOL workshop in which Gladys gave the presentation, has made a recording of the session available with a TinyURL. Thanks, Vance!
Thanks, too, to Gladys for publicizing this all in a blog post, Pageflakes for Educators (2009.02.10), in which she also notes recent concerns regarding the stability and viability of Pageflakes.