Hello,

Well, the only way if not a shared database (as when setting a multiple domains installation on same server) is to use the iframe way to include part of one site to one other...

Needs to put hand on code to create a custom template view which will include only the module.
And then to include the url of the page set with module and this site template inside an iframe in the other website.

Hope this gives a few tips?

Best regards,
Cyril