TeamViewer - TeamViewer lets you establish a connection to any PC or server within just a few seconds.
Plutoview - Shared browsing solution for remote group collaboration
VNC Connect - VNC is remote access and control software which allows you to view and fully interact with one...
Snippyly - Turn your screen into a collaborative document.
ConnectWise Control - ConnectWise Control is a mobile app that allows you to instantly connect with another system from anywhere with a connection to the internet. The software not only comes in a mobile app, but it has a desktop version as well for complete coverage.
Timbo - Retrospective tool for remote teams, that covers all agile retro stages and is fully customizable