I have three subdomains (a b c) - each running separate instances of wordpress. What I want to do is combined these three instances into one instance on the main domain.
How it would work: I submit something to (A, B, or C) and it uploads to the main domain but not to the other two subdomains. Essentially A, B, and C would be feeders for the main domain. Is this possible? Any hints, any guidance? I'm rather inexperienced, but crafty and resourceful!