In 2007, the IC3 received 206,884 complaints of Internet crime of which they referred more than 90,000 to law enforcement. In total, there was almost $240 million in reported losses, a $40 million increase over 2006. The full report is available at http://www.ic3.gov/media/annualreports.aspx.
One thing that’s interesting is that the number one complaint is Internet auction fraud. Other complaints include non-delivery of purchases and credit card fraud. There were also a number of non-fraudulent activities reported such as computer intrusions, child pornography, and spam.
The report describes the characteristics of commonly reported scams such as those involving the purchase or sale of pets, check scams, spam, and online dating fraud.