The Kraken Project

Melissa Shepherd, a brilliant programmer, has developed 'Dorothy,' a powerful, self-modifying AI whose true potential is both revolutionary and terrifying. When miscalculations lead to a catastrophe during testing, Dorothy flees into the internet. Former CIA agent Wyman Ford is tapped to track down the rogue AI. As Ford and Shepherd search for Dorothy, they realize that her horrific experiences in the wasteland of the Internet have changed her in ways they can barely imagine. And they're not the only ones looking for the wayward software ... (taken from an OCLC/WorldCat entry for the novel)