Bill, which awaits floor vote, would encourage investigators to comb peer-to-peer networks for illegal images and would rewrite laws to ban Webcasts depicting child abuse.

Paraben software analyzes images in real time to search for pornographic content on business networks. It should attract the attention of every corporate counsel and HR manager.

In his mid-fifties, at an age when many people start to consider early retirement, Rob Harriman has returned to university. After 30 years in computing, the data-storage consultant is pursuing a new interest: technology and crime detection.

Co-host Steve Inskeep talks to Elizabeth Charnock, CEO of Cataphora. The California-based firm helps companies in legal matters by investigating patterns of employee e-mail use.

Anyone who doubts that Internet click fraud has become a big money maker should take a look at a Russian Web site called Robotraff.com, which bills itself as "the first stock exchange of Web traffic." Set up a free account at Robotraff and you're ready