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FeedBurner was a pay services previously, now it will be free:

FeedBurner PRO
FeedBurner is a Chicago-based company, a News feed management provider launched in 2004. Its Web-based tools, provides custom RSS feeds and management tools to blog advertising network, web-based content publishers, podcaster to help promote, deliver, and monetize their content on the Web and make feed-based content more accessible and manageable for its end users.

A Google Groups launched a new interface for Google Docs which happens to be miles better than the older interface. The Google Docs and Spreadsheets blog also covers the launch and redesign.

What is new?

There's a great new look with new icons, more content, and better organizational controls.
Explorer view with Folders and files for easy organization.
New improved search function
You can see documents sory by edited "today," "yesterday," "earlier this month," or "earlier this year."