Sorry if this is not the right place for this...but I could not find a more appropriate area for this question.

Does anyone know who legally owns the posts on a message board that you host? I host a UBB Classic board, and have had a couple of people threaten me with lawsuits in the last year regarding posts they either made, or I deleted. Their view is that they own what they post. My view is that it is my board, I have paid for the hosting and licensing, therefore I own the content that users post. Does anyone know where I could get some info regarding this? I'm sure it must have come up before with other admins of UBB boards...

Thanks in advance for your thoughts,
Mark