Several forces are at work in the "social collaboration" tool marketplace that are creating great turbulence.
It’s fairly well-known that businesses face a systemic issue with adoption of social collaboration tools. These tools (also called enterprise social networks, or social business) share some common design motifs, like activity streams, project or group workspaces, file sharing, user profiles, and various communication mechanisms such as direct messages, @mentions and so on.
But what isn’t generally acknowledged is that business productivity was much higher in the years preceding the emergence of Web 2.0 social collaboration tools. This means that Web 1.0 era tools — like instant messenger and the much maligned email — may have offered more oomph, at least when compared with pre-Web techniques like fax, phone calls and inter-office mail.