Shared Posts between Blogs

Hi, I am using WP MU for our church network. We will have many sub-blogs within this network (each for a local church). I will do the administration for the whole website. I would like to mark posts sitewide so i can use it in our "major" frontpage... like "feature posts" or "interesting posts" from others sister blogs within the network.

So it would work like: when I am loged as admin, I could navegate through the list of posts (from all the network) and mark some of them as "shared" to a list of posts linked to those blogs.

Sorry for the english!