Google files new patent for spam finding

Google filed a new patent for a algorithm, one that will find spamming articles that manipulate the internet with spamming tactics to get on top. The patent says: "Systems and methods that identify manipulated articles are described. In one embodiment, a search engine implements a method comprising determining at least one cluster comprising a plurality of articles, analyzing signals to determine an overall signal for the cluster, and determining if the articles are manipulated articles based at least in part on the overall signal."