PayPerPost - I'm speechless
techcrunch.com
techcrunch.com
Another thought: whose review of a product is likely to be more neutral, the one from a blogger who bought it with his own money, or the one from the blogger who got the product in the mail for free? My guess is the one who got it for free might actually be more "objective", because otherwise there is that psychological effect that people estimate things higher that they paid for, so that they don't feel stupid. See also http://en.wikipedia.org/wiki/Cognitive_dissonance (Cognitive Dissonance)
We should try this with politicians and juries -- instead of letting them come up with policy on their own, we should bribe them so they'll look at it more objectively.
What's next, you walk into a financial advisor and you see a poster "will reccommend anything for a fee - enquire within"?
If you want a blogger you can trust, you're already screwed. Blogging makes you exactly as anonymous as you want to be, so it's almost certain that what people refuse to disclose is whatever will hurt them most.