This document discusses concepts related to social media use in B2B companies. It covers collective intelligence where people and computers act more intelligently together than individually. It also discusses participatory economies through new models like crowdsourcing, crowdfunding, and crowdworking. Examples are provided of companies using these approaches, such as crowdsourcing logo design and ideas. Social networks and weak ties are described as important for accessing new information. Specific social media like Twitter, LinkedIn, and their features are outlined.