[philipscott]

That approach relies on an iframe to load 3rd party sites. Sadly, this won't work for a lot of websites like news.ycombinator.com.

Furthermore, an iframe cannot be synchronized across participants. If you and I load YouTube in an iframe, it's not guaranteed that our videos are sync'd.

With Hyperbeam, you can embed any website and the content is sync'd. Think of it like sitting beside somebody with a computer.