RSS. Really Simple Syndication. Great for identifying your available content, great for sharing content that can be consumed by aggregators and readers.
What it's not great at is providing a monetization model. Sure you can use ads on your website, but I think there's a better way.
I put together a screen cast that talks about syndication and the opportunity to leverage information cards and CardSpace to monetize RSS and OPML.
Watch it by clicking on the link below.
http://www.marcmercuri.com/downloads/MonetizingRssWithInformationCards.wmv