Unified Meeting Experience This is another video conferencing tool, with free and paid versions. It says of itself that it's "a cloud service that provides a 3-in-1 meeting platform with HD video conferencing, mobility and web meetings. UMX also offers the first available mobile-screen sharing and an innovative hybrid cloud service." There's nothing to install - as long as you've got a webcam of course. The free version gives you an unlimited number of 1-1 meetings, unlimited group meeting for up to 25 people for a maximum of 40 minutes. It's got lots of good features, and though I haven't tried it myself, it looks good.