This handy web part can be found at CodePlex.
FeedReader is our most popular web part. With the world of aggregation getting more popular and more portals and mainstream internet media leveraging syndication feeds (aka RSS, Atom, etc.), there is a greater need to provide a home for this information. In SharePoint, a team site or your My Site provides a great landing area for you to represent your own personal/team space with relevant information...and leverage syndication feeds. FeedReader is a web part that can consume multiple RSS or Atom syndication feeds and represent it in a clear, concise web part view (with different view options). FeedReader was the first web part of it's kind. Unlike others (and the WSS XML Web Part), FeedReader was the first to allow multiple feeds in one web part, caching of information, collapse/expand options on the feed description, and filtering options.
