As the Underground Economy has grown and flourished, cybercriminals have developed new methods for tricking victims. Their scams are amazingly lucrative, with profits totaling in the billions per year. Many perpetrators hail from Eastern Europe where cybercrime is rampant and considered business as usual. Canadian pharmacy spam, fake antivirus and others are part of a well-organized business model based on the concept of affiliate networking. In the case of cybercrime, products sold via affiliate marketing may be highly profitable, although highly illegal—such as click fraud and selling credit card details.