"Last year, noted blogger and technical evangelist Robert Scoble
made headlines by explaining how he manages to read a staggering
622 RSS (Rich Site Summary) feeds each and every morning. Although
attempting to digest this much information on a regular basis is
probably overkill for most, it's a testament to the efficiency
boost gained from subscribing to RSS feeds in lieu of navigating
from one web site to the next.
"But what exactly is an RSS feed, and how does one go about
consuming them? In this tutorial, I'll show you how to use Ruby to
retrieve and parse RSS feeds from your favorite web sites. You can
use what you learn here to do something as simple as including a
favorite RSS feed on your web site, or as the basis for building
your own custom RSS aggregator...!"