NextPlane - NextPlane offers cloud-based, scalable unified communications federation service for the enterprise.
Dropbox - Online Sync and File Sharing
WebRTC - WebRTC is a free, open project that enables web browsers with Real-Time Communications (RTC) capabilities via simple JavaScript APIs. The WebRTC components have been optimized to best serve this purpose.
Google Drive - Access and sync your files anywhere
Voxer - Turn your phone into a Walkie Talkie. Don't waste time on phone calls and voicemails.
Mega - Secure File Storage and collaboration