I think it's a good idea. But I think the implementation could be better. First of all, login+invitation is a bit much. You're not google, I don't think you'll

I think it's a good idea. But I think the implementation could be better. First of all, login+invitation is a bit much. You're not google, I don't think you'll submerged in requests without any heavy marketing. I think you should get a graphic designer to redo your buttons and logos. There's a lot of information on the screen and it's a bit difficult to navigate. I would use tabs for each category(videos, flickr, mainstream media, blog feeds, yahoo groups). English second language, sorry for the grammar.