The study looks closely at how law firms use various features of LinkedIn, including paid ads, video ads, InMail, invitations, participation in LinkedIn Groups and other features of the most important social networking site for lawyers. The report includes hard data on the number of LinkedIn followers per firm, and of spending on various LinkedIn services. The study also details the policies of different firms on developing LinkedIn profiles, frequency of updating or posts, and use of LinkedIn visitor metrics for marketing purposes. The study helps firms to answer questions such as: What really works on LinkedIn for law firms? How important is LinkedIn vs other sites such as Google+ or Twitter? Data in the report is broken out by size of law firm and by other useful variables such as the extent of firm revenues from litigation, and the main audience for the firm's services (individuals, big business, medium-sized business or small business).