I'm looking for a free service that will let me do one-on-one conferencing. I need something that will allow screen sharing that can be accessed by both host and visitor. I don't need to be able to record sessions, have integrated audio, or anything fancy.
I know Skype now has screen-sharing, but not all of the clients I need to do remote support for use Skype, and I can't force them to. It would make things much easier if I could just provide them with a conference URL to go to that would let me view their screen as they perform an action that's giving them trouble.
Remote control of the client's computer would be a plus, but is not necessary.
I know that most of the big services (webex, livemeeting, gotomeeting, etc.) have free trials, but I'm looking for a service I can stick with. It's fine if there's a limit to how many conferences I can have per week or month.