As I plan the DMNews features for the rest of 2008, I'm starting to turn my mind to a couple of stories we'll be doing on global marketing this fall. So I turn to you, faithful DMNews readers -- what are some of the biggest challenges for U.S. marketers looking to implement global campaigns? What are some recent global campaigns that you think have really worked well? As a U.S. marketer, what do you want to know about going global? I'm on the hunt for ideas...I hope you'll share yours!