Looking back, it's clear to Fauscette that Microsoft picked the best ESN product available at the time, and that so far the acquisition appears to be working well for both parties.
Microsoft bought Yammer primarily to boost the ESN features in its all-purpose and ubiquitous SharePoint enterprise collaboration server, which has an on-premises version and a cloud-based version called SharePoint Online that is part of the broader cloud email and collaboration suite Office 365. The newest on-premises version is called SharePoint 2013.
Integration of Yammer and SharePoint is grinding along and will take probably two years to complete. In March, Microsoft offered an integration road map that calls for Office 365 customers to get the option this summer to replace SharePoint Online's activity-stream component with Yammer's, a modest, basic first integration point.
Also by this summer, Microsoft will deliver a Yammer application that will let users embed a Yammer group feed into a SharePoint site. This Yammer application, which will be available in the SharePoint app store, will work both with SharePoint Online and with SharePoint 2013 servers installed on a customer's premises. Microsoft will also make it possible for customers to replace the newsfeed in SharePoint 2013 servers installed on premise.
Later in the year, the integration will deepen with a single sign-on and the inclusion of Yammer in the Office 365 interface. Yammer will also gain integration with Office Web Apps, the browser-based version of the Office productivity suite, before the end of the year.
Next year, Office 365 customers can expect integration between Yammer and other Office 365 components beyond SharePoint, such as Lync and Exchange. Yammer is already being integrated with Microsoft Dynamics enterprise software.
Juan Carlos Perez covers enterprise communication/collaboration suites, operating systems, browsers and general technology breaking news for The IDG News Service. Follow Juan on Twitter at @JuanCPerezIDG.