The Recording Industry Association of America's announcement on June 25 that it will start tracking down and suing users of file-sharing programs has yet to spook people, say developers of these applications. "Forget about it, dude -- even genocidal litigation can't stop file sharers," said Wayne Rosso, president of Grokster, one of several systems that allow users to upload and download files -- many of which are unauthorized MP3 copies of songs published by the RIAA's member companies. Rosso said file-trading activity among Grokster users has increased by 10 percent in the past few days. Morpheus, another file-trading program, has...