Linked In (www.linkedin.com/in/adriennegraham): I started using LinkedIn back in 2004 to do recruiting. I love being able to research and connect with influential business leaders, subject matter experts and candidates. I also get to respond to questions and showcase my expertise. The downfalls of Linked In is there is no policing. For all of the rules they have, LinkeIn does not step in to regulate user generated content, so there is a lot of unnecessary spam. But it works for what I need.