We have a new sister company. We are looking to have a teleconference with their engineering department soon and are wondering what is available to share our computer screens with each other so we can discuss joint projects. We have all sat in on Go To Meeting webanars but have never hosted one. Is it possible to share both directions with GTM? Are there any other FREE options out there I know Google (as much as I hate Google) can share documents but I don't know about being able to view models and drawings on there.

Suggestions?