This document discusses social media and web 2.0 technologies. It outlines the benefits of social media such as ease of communication, sharing information instantly worldwide, and enabling real-time collaboration. Examples of social media platforms are given for communicating (blogs, microblogs, social networks), sharing (photos, video, links, documents), and collaborating (wikis, online office tools, project management). The document also discusses technologies like RSS, tagging, and APIs that enable web 2.0 applications and discusses using existing platforms and custom solutions to draw these tools together.