Seattle radio station KEXP has a puny transmitter. But the station is becoming a force in the indie music world through its popularity on the web. “In spring 2004, about 26,000 people listened to KEXP online every week — more than any other radio station in the country, according to Arbitron’s now-defunct Internet broadcasting service. This year, that number has jumped to 50,000, with large clusters of listeners in New York, where KEXP broadcasts live twice a year; Chicago; San Francisco; and Washington, D.C. Listeners are giving the non-profit station a projected $1.7 million this year, nearly $1 million more than they gave in 2003.”