Crewdle - secure and green made simple
MOMO BOARD - Free Community App, Group App, Chat, Cloud Storage
Weet is an asynchronous video communication for remote teams
CoreUM - The Ultimate Meeting Application
Calendly - Scheduling appointments and meetings is super easy with Calendly.
Mural.ly - Google Docs for Visual People
Meetin.gs - Free, Easy and Better Online Meeting Organizer
Etherpad Lite
World Time Buddy - Ridiculously easy world time and meetings across time zones!