Now that I'm publishing an RSS feed, I'm interested in aggregation. What's aggregation, you ask? It's the ability to take content from a bunch of places (like weblogs and news feeds) and pull it together under one interface where you can easily check for updates. An RSS feed is an XML document that a weblog creates so that other people can read their headlines, and a teaser comment. For an example, here's mine.
Since I'm new to aggregation, I'm looking for tools that let you display aggregated RSS feeds, and where to find good feeds. If any of you are knowledgable in this area, please let me know what you like to use (or have heard of) in the comment section.