WMT - New Data Highlighter for Event Data

Google announced the launch of a new tool to help novice webmasters create rich snippet markup (structured data) for their web pages. The tool is a point-and-click tool that lets a webmaster click on words or phrases and add elements of structure data to it without having to go into the code and add it to the HTML. 

Official Google Panda 22 Update on November 21

Update:  0.8% of queries in English were impacted by this.