One of the initial advantages of Joost was the software client. Yes, it had its problems but it provided interesting features that are hard to impossible to realize in a web client. For one, switching between channels and shows was more or less instant, the web client delays requests because that is how the web works.

Users do need an account before they can watch any show on the website which is one of the big drawbacks of the system. The other drawback is the lack of mainstream media. Yes, you find some tv shows that are free to watch for users from authorized countries but there is not a lot mainstream wise that you cannot watch somewhere else on the Internet.

What Joost needs more than anything else is killer content. Not necessarily tv series like 24 or Alias. It could be something more geeky exotic like a huge Anime archive or Independent movies. There should also be room for educational content.

Joost cannot compete with Youtube because of the sheer mass and sites like Hulu because of their content.