I think that team viewer is better than other software, but if you are looking for an alternative then the only Open Source alternative that I know about is OpenMeetings. It's a JEE application that's not too hard to deploy if you had some previous experience with tomcat. If you plan to host meetings with many participants, you'll probably need a server with a decent amount of RAM. It does audio/video conferencing and screen sharing. Screen sharing streaming is not very bandwith-optimized, it may work over intranet, but it's not very reliable over the internet.
They started selling a hosted model as well. I think the self-hosted model starts at $2195 for 3 tech licenses. They also have a hosted model goes from $19-$45/mon depending on options. The free should be good if you are just helping out friends, family or want a agent on your home machines.Looks like Screen Connect has gone the way of logmein. Packages are now STARTING at $2195!! I paid $495 just a couple years ago.
It's still a crazy price hike. I'll continue to use what I have but when it's time Ill transition away from them. It was a good price while it lasted.They started selling a hosted model as well. I think the self-hosted model starts at $2195 for 3 tech licenses. They also have a hosted model goes from $19-$45/mon depending on options. The free should be good if you are just helping out friends, family or want a agent on your home machines.