We create a widget for media sites and also have incorporated the Facebook Like button, so anybody who installs our widget will get so on button on every page without needing to do additional integration work.

We want to exhibit the website owner some fundamental data / statistics about Like activity... which Web addresses are loved, and just how many occasions.

I can not determine if this sounds like even available through the Graph API or FQL. If it's, I can not know if I want an application_id and secret token for every domain or otherwise.

Any suggestions?

There's an identical discussion happening right here, that might help... http://stackoverflow.com/questions/2798622/facebook-like-button-callback/2814622#2814622