The November 2009 Social Radar Top 50 measures the brands with the most active Web presence based on overall online conversation volume. To create the Top 50 list, we used Social Radar to analyze millions of blog posts, news feeds, forums, social networks and Twitter posts to aggregate a list of the words and brands mentioned most frequently on the Web during November 2009. The list measures the number of unique individuals or sources that posted content about each brand during November 2009 rather than the overall number of mentions, which would be more heavily influenced by big fans who post frequently about a specific brand.

There were quite a few shifts this month. The success of Windows 7 has increased the chatter of Microsoft and Windows, raising their ranking three spots. Verizon has made it into the Top 50 this month and AT&T has increased rank mostly due to chatter around recent Verizon-AT&T attack ads. Also making an appearance this month is Oprah due to her announcement of the show ending in 2011.

The biggest surprise this month is Android, or “Droid”. It has made a remarkable jump to 11th place, surging past heavy hitters iPod, Blackberry, and even MySpace. It received nearly identical amounts of chatter as Windows and Microsoft this month.

View the full list below, or download the PDF. For additional information about how you can analyze chatter sentiment to gauge positivity/negativity, view key words mentioned about your brand and identify key influencers, visit www.infegy.com/socialradar.

Questions or comments? Twitter me @adamcoomes.