Source: http://techcrunch.com/2014/06/25/faceboo...

“We are making work more fun and efficient by building an at-work version of Facebook,” the source says. “We will touch code throughout the stack and on all platforms (web, iOS, Android, etc.).” The source, who refers it as [email protected], says the effort is based in London.

What’s not clear is whether [email protected] is something being built as an internal enterprise communication platform, or whether there are ambitions to leverage Facebook to drive new business, by giving people a way to interface with the hundreds of millions of people who already use it to market their businesses and themselves — along the lines of LinkedIn.