Perhaps I shouldn't be too surprised that this 'fans' vs. 'followers' debate centres around company brands and sales penetration. The social and collaboration aspects don't even get a mention, yet this is surely the main reason that people use these networks. There is a value to knowledge sharing - perhaps not always tangible - but potentially far more rewarding for users than being a 'fan' on Nike's fan page. I'd much prefer to see some useful analysis of fans vs. followers from the pure social networking perspective. Point me at the article if there is something out there.