The document traces the history of enterprise use of social software and web 2.0 technologies, beginning with basic internet communication tools in the 1960s-1980s and the rise of static websites in the early 1990s (Web 1.0). Web 2.0 emerged in the early 2000s, bringing new technologies like AJAX and the growth of social media, blogs, and wikis. Initially these were used primarily for non-commercial purposes, but by 2006 companies began adopting web 2.0 tools internally, such as wikis and blogs, seeing benefits like using YouTube for marketing. The document then discusses concepts of "Enterprise 2.0" and lists some common enterprise social software solutions and new marketing channels used by these collaborative,