From a Wall Street Journal book review of Citizen Marketers:
"The key was the more recent development known as Web 2.0. Powered by XMA, a computer language that makes it easy to merge data from any number of sources, Web 2.0 has transformed the Net from what was largely a platform for micropublishers to a free-floating community forum that encourages multimedia participation by anyone with a broadband connection."
Aha. So nice to learn that I haven't been writing multi-tiered database backed websites with AJAX web frontends and RSS/Atom feeds, I've just been doing XMA. ;-)
ps the article is over here if you have a wsj.com login