Feedburner, one of the earliest players in the RSS world and one of the most well known, was recently purchased by Google.

You can read about it in the official Feedburner blog.

This is a huge endorsement for RSS.

Between Microsoft's strong support for RSS in Outlook and Vista, coupled with Google's endorsement of RSS via FeedBurner, this exciting new medium is going to see a surge of attention and usage in the coming year.