Remember Prodigy, CompuServe, and America Online - the Big 3 Networks that ruled the world before the World Wide Web?. At one time they could do no wrong -- but today, they are names from the distant past with only AOL still hanging on............. The same thing is happening to Career Builder, Hot Jobs and Monster. The following Hitwise graph is based on these original "Big 3" job boards showing the market deterioration. So where is the traffic going? - To job aggregators such as JobCentral, Simply Hired, and Juju.