Aggregating RSS feeds
Most modern, regularly updated websites (such as news sites, blogs, and so on) allow the users of these sites to subscribe to an RSS feed (which is in fact an XML file that follows a certain schema), which will typically contain excerpts of site updates. As we've learned in the previous recipe, we can easily access RSS feeds from Silverlight.
However, sometimes you might want to publish your own RSS feed. In this recipe, we'll build an application that aggregates a few RSS feeds into one new feed, which is then published so that people can subscribe to it.
We're starting from the solution we completed in the previous recipe. If you didn't complete that recipe, you can find a starter solution located in the code ...