Yammer - Yammer is a leading enterprise social network used by more than 200,000 companies worldwide, including 85% of the Fortune 500, to get work done smarter and faster. Sign Up Today.
The Answer Bank - The Answer Bank is the UK’s leading question-and-answer site.
MS SharePoint - Share, organize, and discover information with Microsoft SharePoint. Learn about SharePoint Online, OneDrive for Business, and Apps for SharePoint
wikiHow - wikiHow is a wiki based collaboration to build the world’s largest, highest quality how to manual.
Communifire - Enterprise Social Collaboration Software
AllAnswered - Your Team's Collective Brain All-In-One Knowledge Management System Wiki + Q&A + Workflow + AI