= an extension to the Atom feed format to express what people are doing around the web
URL = http://activitystrea.ms/
Dion Hinchcliffe on Open Activity Streams:
"there has been some interesting work on standards for social activity streams and activity stream aggregation. The standard to watch is activity strea.ms which has already been adopted by Facebook, MySpace, Windows Live, and Opera and many others with Google and Yahoo! close behind. Some are likening this to when different phone systems or e-mail providers allowed their respective populations to communicate with each other.
Once standards are put in place by providers (and release officially in their tools and platforms), activity streams can be more easily accessed for both browsing and posting using well defined APIs, thereby directly enabling unified 3rd party experiences across different social channels. Activity stream aggregators like Friendfeed or social dashboards such as Tweetdeck can then offer a single social front-end that holds the promise to reduce the friction of using today’s proliferating channels of social media." (http://blogs.zdnet.com/Hinchcliffe/?p=1152)