Professional social networks that take on LinkedIn

You might be using LinkedIn to stay connected with your business contacts, but there are alternatives on the Web that will help you network and enjoy some extra features while you’re at it. Whether you want to hang out at some professional parties or you’re more interested in sharing best practices, there are some really neat business-centric social networks on the Web you’ll want to visit.

by Don Reisinger

Full Story: http://news.cnet.com/8301-17939_109-10296752-2.html