Most savvy Internet users are familiar with Web cookies (small text files used by websites to track information about a user) and know how to disable them using their browser’s privacy controls.
With over 750 million users, Facebook may be the king of general social networking, but when it comes to professional networking, LinkedIn is definitely on top.
If you have kids, they’re probably online. According to a 2009 study by Harris Interactive, 72 percent of teenagers have profiles on social networking websites.