As of right now, when you view the boards, every so often a pop up ad appears. I see this as a small price to pay for this being a free board host. However, the owners of ProBoards have announced that on Sept. 1, 2003 they will eliminate all of the popups. Which means that there will only be banner ads on the page.
I survived the Blackout of '03, and I didn't even get a lousy T-Shirt