I'm sure many XenForo do have related forums and/or have in the past, therefore I'm curious as to how you cross-promote them.
- Do you put a network link bar at the top of the page?
- Do you put a network link bar in the footer?
- Do you link to your other forums by creating a link node via XenForo?
- Do you hard code links to your other forums right into the nav bar?
- Do you cross promote them in a different way?