LogMeIn - LogMeIn gives you fast, easy remote access to your PC or Mac from your browser, desktop and mobile...
TeamViewer - TeamViewer lets you establish a connection to any PC or server within just a few seconds.
Parsec - Streams games locally or over the internet
mRemoteNG - mRemoteNG is a fork of mRemote, an open source, tabbed, multi-protocol, remote connections manager.
UltraVNC - VNC remote access software, support server and viewer software for on demand remote computer support. Remote desktop support software for remote PC control. Free
join.me - Instant screen sharing. Instant Aha!