Thank you... good feedback. I have added some simple instructions in the web view for now to get people started...

That does clarify things, but users still have to go through several steps before they see it. When I look at your front page, the only impression I get is "web based group chat." You should elevate shared viewing to something you mention first.

edit: You do have the material for that, but it's under the "View Sites Together" tab. That information should be what I see first. Looking briefly at your blog, you understand this is your killer feature. You need to make sure your users understand that, too.

Thank you - Totally get what you mean - Will have a think.