January 2010
Official Google Webmaster Central Blog: Introducing a new Rich Snippets format: Events
We originally introduced Rich Snippets with two formats: reviews and people. Later in the year we added support for marking up video information which is used to improve Video Search. Today, we're excited to kick off the new year by adding support for events.
June 2009
Google Adds Facebook Friends to Results
I’m not seeing any special markup in the Facebook profile page, but could this be Google’s “Rich Snippets” feature in action, as announced at this year’s Searchology conference?