This document discusses knowledge creation and social collaboration in Alcatel-Lucent's digital workplace. It describes how Alcatel-Lucent launched its internal social network, Engage, in 2010 to help employees connect, collaborate and share knowledge more easily across the large multinational organization. The summary highlights that Engage grew rapidly to over 74,000 users within 3 years and helped break down silos. Lessons learned included the importance of executive sponsorship, early adopters, and ensuring HR and IT work together to measure impact on culture, recruitment and retention.