Among the few firms benefiting from the upheaval in the financial markets are professional social networks—websites that help with business networking and job-hunting. On LinkedIn, the market leader, members have been updating their profiles in record numbers in recent weeks, apparently to position themselves in case they lose their jobs. The two most popular sites, LinkedIn and Xing, have been growing at breakneck speed and boast 29m and 6.5m members respectively. And, in contrast to mass-market social networks such as Facebook and MySpace, both firms have worked out how to make money.
http://www.economist.com/business/displaystory.cfm?story_id=12304861
