
Unfortunately, Performancing sold their metrics service to PayPerPost, a company that pays bloggers to write posts about products (a combination between advertorials and product placements). BusinessWeek said they're "polluting the blogosphere", while TechCrunch concluded they're offering to "sell your soul". While PayPerPost policy changed and bloggers must disclose that they are accepting payments, it's hard to trust a company that doesn't give a damn about ethics.
It's weird to see a great service in such ugly hands (this is the risk for any startup), but it's also difficult to find other service that offers the same features. So if you know a better alternative, or if you think I'm wrong, tell me in the comments.