Using Technology to Find Missing Children?

GregAllen asks: "We live in a world where technology provides us global communication and instant gratification. The internet has made the world a much smaller place, and news travels at the speed of electrons. However, it's still pretty easy to hide. There is an epidemic in the U.S. -- the government estimates that there are 350,000 family kidnapping per year. You never think it will happen to you, but it did happen to me -- my ex-wife kidnapped our daughter and has been missing for almost 6 months. She's wanted by the FBI, but she hasn't been found. See the Find Sabrina website -- there's a $10K reward. When you are confronted with this situation, the world is an overwhelmingly large place. How would the alpha geeks at Slashdot use technology to locate someone that doesn't want to be found?" While putting up a website to assist in the search helps, are there other digital methods one can employ to assist in the search?