Have you ever read a really interesting article online only to see an icon underneath that suggested you should "share" or "bookmark" it? If so, you have probably become aware of a phenomenon known as social bookmarking and it is here to stay. In a most rudimentary way, social bookmarking is reminiscent of the "favorites" button you most likely know about. It is located in your browser bar - you might have it set up with a shortcut on your keyboa...