I came across this very nice hack for vbulletin earlier today:
vB Ad Management 3.1 (Ad Sharing Edition) - vBulletin.org Forum
It gives you a lot of control over who sees the ads and where, so you can literally turn off ads with one click
vB Ad Management 3.1 (Ad Sharing Edition) - vBulletin.org Forum
It gives you a lot of control over who sees the ads and where, so you can literally turn off ads with one click