Engage - Engage is a PowerPoint add-in that lets people of any skill level create and automate visually impressive presentations with infographics, pictograms and data maps.
Trivia for Google Chat - Team-building w/ fun quizzes, games right inside Google Chat
Involve - Get behind-the-scenes access to your favorite nonprofits
Icebreaker from Range - Start your meeting with 200+ free team-building questions
RESITE for Energy - Realistic Training Simulations for the Gas and Oil Industry
meet.atSlack - Team building on Slack