Sharepoint has a huge information ecosystem that, like the system integrators, resells the benefits of Sharepoint ( Harmon.ie produced a great infographic of it a few months back).

FORBES: Microsoft's SharePoint Social Business Strategy Will Sell But It Will Not Be Sweet

As for Janrain, it has a full-blown user management system, which processes huge amounts of information from sources like Facebook (NASDQ:FB), Twitter, LinkedIn (NYSE:LNKD) and Google (NASDAQ:GOOG).

FORBES: Janrain Raises $33 Million To Supercharge Social Media

The advantage of instant access to information regardless of device, operating system or location is a huge factor in the dominance of web apps over desktop apps.

FORBES: Experts Predict We��ll Be Working In The Cloud By 2020