I know a lot of people will have seen these before but I thought listing them together was worthwhile. They are excellent at highlighting the business benefits of Lotus Connections.
Video 1 - Get out of mail jail and file sharing.
Video 2 - Blogging & Wisdom of the Crowd
Video 3 - Wiki's
Video 4 - Communities
Video 5 - Activities
Video 6 - Microblogging
Video 7 - Tagging & Expertise Location
Video 8 - Research & Leveraging Existing Organisational Knowledge