59% of active social networkers say LinkedIn is their platform of choice over Facebook or Twitter. This number has grown since last year when 41% called LinkedIn their most important social account.  In spring of 2011, LinkedIn reported over 100 million members in more than 200 countries-with unique visitors up 63% from the previous year, making it the second most popular social network behind Facebook.  Experienced professionals are using LinkedIn to promote their company and win new business through the use of LinkedIn’s target searches, company pages and group features.