In the current culture of user generated content in a web 2.0 world, many people look to review based websites to generate income, as Google's current algorithm demonstrates a clear informational over product bias.
In a case that's clearly destined for the courts, Lawyers are suing a Lawyer review site Avvo, claiming that the ranking system can be gamed. However Duncan Riley writing for TechCrunch has a deeper insight how this could unravel like a big ball of yarn Lawyers Sue Lawyer Ratings Site
The crux of the suit is about calculations and ratings; the only people who would be deeply concerned with the suit are Web 2.0 startups that use proprietary ratings system. The thin end of the wedge could be a precedent where service providers with negative ratings on review sites could sue those sites on the basis that the rating system itself was deceptive or unfair, and that could mean just about all of them.
It will be interesting to see how far it goes and what the ramifications will be to people who are running review based websites.