bill - 5:25 am on Mar 4, 2010 (gmt 0)
PubSubHubbub is a great way to get your RSS and Atom feeds syndicated, fast. It avoids the old ping model where your software would have to go out and tell an aggregator that a feed was updated.
RSS is becoming a real background process that you may be consuming without knowing it. It's not all just RSS feeds and feed readers anymore.