Check out the Silicon Valley Moms "Summer Road Trip '08." Five mommy bloggers are driving across the United States in a Chevy Tahoe Hybrid. Other sponsors include Yahoo!, CBS News, WeightWatchers, Six Apart, and Zune. The moms describe it as "5 blogging moms, 7 days without kids, 1 car without carseats, 2,000 miles to drive." The promotion is an example of great marketing at low cost. Something to think about when you're coming up with marketing ideas. By the way, if you work for Audi, Porsche, or Mercedes, contact me to do a similar event.