WordPress MU

I have an installation of WPMU running and I'm searching for a plugin that would permit a user from another blog site to publish the same article to my site without having to publish twice.

Is this possible?

Is there a plugin that could bridge this?

Please advise :)

WP-o-Matic?

WP-o-Matic makes autoblogging a snap by automatically creating posts from the RSS/Atom feeds you choose...

With bugs... try search for WP Autoblog plugin.