Microsoft has filed a click fraud suit against brothers Eric and Gordon Lam and their mother Melanie Suen. The suit was filed in the Western District Court of Washington and involves click fraud pertaining to a scheme involving auto insurance and the video game World of Warcraft.
The adCenter blog offered up a visual representation of what click fraud looks like. The image below maps IP sources and the clusters indicate automated traffic. Normal traffic would be more evenly spread with a variety of IP sources hailing from throughout the Internet.