Zoom - Equip your team with tools designed to collaborate, connect, and engage with teammates and customers, no matter where you’re located, all in one platform.
DocSlide - DocSlide is an online document and knowledge sharing platform.
WebEx - Cisco WebEx Web Conferencing, Online Meetings, Desktop Sharing, Video Conferencing
SlideShare - Discover, Share, and Present presentations and infographics with the world’s largest professional content sharing community.
GoToMeeting - GoToMeeting is a web conferencing service offering a range of services which are available on Mac, PC, iOS and Android devices.
Scribd - Unlimited books, audiobooks & comics. Unparalleled discovery. Any device. $8.99/month