The Federal Trade Commission has lately been very focused on internet marketers, especially in the performance marketing and affiliate marketing fields. Several major cases against flogsters and other scammers have been recently announced.
According to Wikipedia
The Federal Trade Commission (FTC) is an independent agency of the United States government, established in 1914 by the Federal Trade Commission Act. Its principal mission is the promotion of consumer protection and the elimination and prevention of what regulators perceive to be harmfully anti-competitive business practices, such as coercive monopoly.
According to their website:
The FTC deals with issues that touch the economic life of every American. It is the only federal agency with both consumer protection and competition jurisdiction in broad sectors of the economy. The FTC pursues vigorous and effective law enforcement; advances consumers’ interests by sharing its expertise with federal and state legislatures and U.S. and international government agencies; develops policy and research tools through hearings, workshops, and conferences; and creates practical and plain-language educational programs for consumers and businesses in a global marketplace with constantly changing technologies.
Clickbank Federal Trade Commission