This document discusses various online tools and social networks that can be used to keep up to date with new information and evidence, including social networks, wikis, blogs, microblogging, social bookmarking tools, and RSS feeds. It provides examples of scientific and professional social networks like Nature Networks and Biomed Experts. It also discusses how technologies are adopted over time from the expert era to the textbook era to the journals era to the current online era. The document notes some concerns expressed by dentists that too much information provided directly to patients online could motivate them to direct their own treatments.