A survey on employers' use of social networking sites showed that 45 percent used them to research job candidates, and one-third did NOT make the hire based on something they read. Take advantage of the fact that recruiters and hiring managers will look online to find additional information about you, and do what you can to stack the deck in your favor. An easy way to do that is to start a blog.
When blogs first became popular, they were mainly a tool for self-expression. Early adopters used them for creative writing, journaling and capturing their thoughts on personal topics of interest to no one but themselves.