UserMonitor!

AnyDesk is the world's most comfortable remote desktop application. Access all your programs, documents and files from anywhere, without having to entrust your data to a cloud service.

Join.me is a quick, remote controlling / screen & file sharing program from the makers of LogMeIn.

Remote Utilities is a remote PC access program for connecting to a remote PC over LAN or via the Internet. The program is used by system administrators, home users and helpdesks for remotely managing PCs in their corporate or home network, or providing customer support.

Get secure remote desktop control of every computer in your organization – Enterprise Remote Support. Greater security over remote access software: PC, Mac, Linux, Enterprise and SMB support - Bomgar

Openmeetings provides video conferencing, instant messaging, white board, collaborative document editing and other groupware tools using API functions of the Red5 Streaming Server for Remoting and Streaming.

Use ConnectWise Control (formerly ScreenConnect) remote support software to quickly and securely access remote users' screens. With just a few clicks, anyone on any operating system is immediately connected.

UltraViewer is a software that help you to remote control your client's computer to support them like you're sitting in front of the screen.

Mark up websites, graphics, and photos, or start brainstorming on a blank canvas. Browse the web with your friends or make that conference call more productive than ever. No plug-ins, downloads, or firewall voodoo - its all here, ready to go when you are. Browser-agnostic, user-friendly.

imPcRemote is a remote support tool that enables instant, secure, and trouble-free connections between remote computers over the web.

Screen share instantly for free using Screenleap. Screenleap makes it really easy to share your computer screen. You can share your screen with as many people as you like with no downloads, account setup, or cost required. Friends, family, and colleagues can view your computer from their laptops, desktops, or mobile devices without having to install anything.

LiteManager - fast and secure remote administration software for Computer. Software for remote support, remote access to home and office. Remote Desktop Connection.

ThinLinc - a remote desktop server from Cendio

Instant screen sharing, web conferencing, remote support, desktop remote control and messaging. No downloads for particpants!