Top 10 Best Group Collaboration Tools for Productive Teams 1. Google Hangouts hangouts.google.com 2. Skype skype.com 3. GoToMeeting gotomeeting.com 5. Slack slack.com 5. Trello trello.com 6. Wimi wimi-teamwork.com 7. Quip quip.com 8. Chanty chanty.com 9. Flock flock.com 10. Acquire acquire.io
