Facebook Is Not the Whole Game -- Other Social Networks for Business

It may seem that Facebook, LinkedIn and Twitter get all the media love when it comes to social networking, but there is a wealth of sites out there to link business people with other like-minded folks. Most appeal to a niche of users, so you’re sure to find one for your particular need. As with all social-networking sites, the value comes from who else participates on the site and how actively. Most of the sites are free, but many charge for premium services (and many make it annoyingly difficult to find out the cost until you sign up!).