New series - startup ideas

Disclaimer - This series is an attempt to capture some of the quote-unquote startup ideas buzzing around in my head. For all I know, there are already startups that do this very thing, do something similar but better, or have tried and failed to do the exact same thing. No due diligence has been done on any of these ideas.

User generated content is everywhere. How about a startup that integrates all kinds of user generated content and offers a seamless way to search for it and to buy it for reproduction/reuse?

The reproduction is not restricted to main stream media but to other user generated content like blogs, etc. The website would allow simple uploads, allow users to tag or categorize the content and offer a targeted search or feeds for certain tags for the end consumer of the content. Royalties would be seamlessly paid to the generator. (Side idea - is there a way to figure out that content has been reused elsewhere?)

ShutterPoint already does something similar but is restricted to stock photography. This is also similar to CNNs iReport but in this case the citizen journalist could actually get paid.

Startup-Z could integrate all sorts of content - images, video, audio (also a way to monetize blog posts for reprinting in mass media??)