Lipsman also says there is one site that isnt even in the Job Search category that has been standing out for the same reason LinkedIn.

According to comScore data, LinkedIn neared its alltime high in July, with about 8 million visitors, a 66 increase from the year before.Everybody knows LinkedIn is heavily used as a business networking tool, and that people use it when they need a job. It is frequently used by businesses for recruiting.LinkedIn may have to worry about Facebook cramping its style however.