This document summarizes research on B2B social media usage. It finds that LinkedIn is the most popular and useful social media platform for B2B, used by 72% of B2B professionals for lead generation and branding. The document also describes a case study of Attunity, which saw a 9.62% increase in website visitors and a 15.34% increase in page views after integrating social media like LinkedIn, blogs, and ebooks into their marketing strategy.