Tim Bell stands in front of a crowd of squirming elementary students. He sticks five candles into a cake, lights three and declares it fit for a 21st birthday. Even an audience that can barely spell the word "computer" knows that 21 candles belong on the cake. But Bell, an associate professor of computer science and software engineering at the University of Canterbury in New Zealand, is not talking about simple arithmetic. On this particular Saturday morning, he is at Butler University to explain binary code and other scientific computer concepts to kids during a one-hour presentation.

A proposed federal law would prohibit schools and libraries from allowing access to social networking Web sites or chat rooms. It was introduced in the House of Representatives by Rep. Mike Fitzpatrick (R-Pa.) in May. The Deleting Online Predators Act would require public schools and libraries to bar minors from "commercial social networking Web sites" and "chat rooms," such as MySpace and Faceboo

"Cyberathlete Amateur League." An online training camp for athletes? A new fantasy football league? How about a massive cyber-network of video-game players, meeting online to play games such as Halo, Doom or Counter-Strike competitively? To most people, being an athlete involves things such as kicking a soccer ball into a net, turning a somersault or scoring touchdowns. But at the Cyberathlete Ama