Atom, an alternative to RSS, is used extensively in Final Cut Server. Atom allows one to, for example show a list of assets and parse the information in a manner that makes sense to a browser to read. Atom also makes internationalization easier for developers. For more information on Atom see it’s wikipedia entry at http://en.wikipedia.org/wiki/Atom_(standard)
In the px PostgreSQL database for Final Cut Server, you’ll notice the pxatommap, which is used by Final Cut Server to parse the nearly 2,000 fields of data used by Final Cut Server into information easily readable by clients using Atom, similar to how the widget that I recently posted on this site uses RSS to display articles published through the site.