After building a Rich Site Summary (RSS), I decided to take the next step, and build a reader that will read any rss v0.91 feed.
This was also my first foray into the use of XPath queries. Though the application was relatively simple, I think this is a good example of how XML can be used. I'd like to build an RSS aggregator like this one, but perhaps that will come at a later date.
You can view the RSS Reader Here
Source Code Here