injecting links into buddypress member posts/pages/custom post types

Hi everyone, forgive me if I sound ignorant, I am an extreme newbie to this. I was just wondering if anyone could guide me to any kind of plugin,softwaresolution, script, or just plain info, that might be able to allow me to inject posts or custom post types that my buddypress members create themselves. I was originally going to allow my members to advertise their own affiliate networks, but then i thought it would be faster to spread my networks if i could automatically inject their posts or pages, then essentially they would be sharing my affiliate networks whenever they create or upload their material...Any help would be greatly appreciated.

many wordpress and buddypress do that