Seriously?
I hope she can program. I think her salary would be better spent on marking features worth adverting about, like a fully-functional, Shadow engine, reduced cost for owning a simulator and better customer support. If you fix what you have now, people would spend more, not to mention the increase in word-of-mouth adverting.
Then Linden Labs would have a reason to hire a marking VP because then you have something to really advertise.
If LL really wants to advertise, just get Steve Jobs to be CEO. Free advertising and the numbers would soar...