Business people on the West Coast are much more connected when it comes to Twitter, Facebook and Linkedin use than their counterparts on the other side of the country. NetProspex came to this conclusion when they studied a wide range of contacts for their Fall 2010 Social Business Report.
NetProspex has their own social index (NPSI) which is determined by how contacts rate in the following areas:
Social connectedness: The number of employees with at least one social media profile
Social friendliness and reach: The average number of connections per employee across major social networks
Social activity: The average number of tweets, number of followers, and number of users following