SAN JOSE, Calif. - After getting a taste of the radio business in college, software designer Craig Patchett never lost his interest in broadcasting. But without a job in radio, it seemed likely to remain one of those unfulfilled passions — until something called "podcasting" came along. Now, Patchett's creating shows and sending them out to the masses every day — not over the airwaves to radios but over the Internet, from his personal computer in Carlsbad, Calif. His listeners download his shows to their iPods and other digital music players. Patchett, 43, is among a growing number of people...