Sony BMG: Avril Lavigne's Girlfriend

What started as a perfunctory corporate online upload to promote an already popular songstress has become a force multiplier for punkish alienation and celebration.

YouTube BrandWatch is The Big Money's exploration into how the world's best-known businesses, so adept at managing their images offline, are being perceived online, where control is harder to come by. Every week, The Big Money features a corporate-themed video that's had significant viewership on YouTube: some approved, some unapproved, some mashed-up combinations of the two. And we'll ask our readers to vote on how the video affects the brands. We think the responses will surprise you, and provide a window onto what is fast becoming the most important playground for corporate games. (Note: This feature has no official relationship to YouTube or its owner, Google.)