‘Facebook at Work’ to launch soon, after spending a year in testing mode

Facebook started beta-testing the service in January and has kept it as a free, “invite-only” service for companies so far.
Facebook at Work, Facebook Inc’s professional version of its social network, is expected to launch in the coming months, after spending a year in tests, a company executive said.
The new service, geared towards workplace collaboration, is nearly identical to its ubiquitous social network, with a scrolling news “feed”, “likes” and a