Here's another useful .Net 2.0 code library, which I found linked from this MSDN blog post by Scott Guthrie. It provides flexible, configurable RSS functionality for both consuming and generating RSS feeds.
Scott's posting provides a great step-by-step tutorial on the basics of using this, including screen shots - excellent work.
RSS syndication is becoming pretty much pervasive, so making supporting it this easy can only be a win.
The RSS Toolkit for ASP.Net 2.0 can be found here, and is definitely one to add to the toolbox.