Reputation Manipulation

User-generated ranking systems are increasingly important these days. Would you buy something on eBay without checking the seller’s feedback rating?

Would you rent an unfamiliar movie at Netflix without glancing at the number of stars it earned from Netflix members? Driven by the dogma of Web 2.0, today most major sites have a way for users to make themselves heard - ratings, comments, reviews, etc. Many of these have commercial implications - a well-reviewed product will sell better, while people will shun a hotel that has bad reviews by past guests. Where there’s commerce, there’s money… and where there’s money, there’s spam. It will be a few days before the Comments