FeedBurner is a news feed launched in 2004.
On June 3, 2007 FeedBurner was acquired by Google Inc., for a rumored price of $100 million. One month later, two of their popular PRO services (MyBrand and TotalStats) were made free to everyone. (source Wikipedia)
FeedBurner provides custom RSS feeds and management tools to bloggers, podcasters, and other web-based content publishers. Services provided to publishers include traffic analysis  and an optional advertising system. Though it initially was not clear whether advertising would be well-suited to the RSS format, authors now choose to include advertising in two-thirds of FeedBurner's feeds.
Published feeds are modified in several ways, including automatic links to Digg and del.icio.us, and "splicing" information from multiple feeds. FeedBurner is a typical Web 2.0 service, providing web service application programming interfaces
(APIs) to allow other software to interact with it. As of October 5,
2007, FeedBurner hosted over a million feeds for 584,832 publishers,
including 142,534 podcast and videocast feeds.