AOL says it plans to begin selling advertising on its streaming radio channels. The company has inked a deal to have Ronning Lipset Radio sell spots on radio channels featured on Netscape and AOL's di

AOL says it plans to begin selling advertising on its streaming radio channels. The company has inked a deal to have Ronning Lipset Radio -- a specialist in selling ad space on streaming radio to traditional advertisers -- sell spots on radio channels featured on Netscape and AOL's dial-up Internet service.

AOL Broadband users will continue to receive commercial-free programming.

The move is the latest attempt by AOL to encourage users to upgrade to pricier high-speed Internet access. It also represents an effort by the online giant to create additional sources of revenue as its dial-up Internet business matures.

The AOL Radio@ Network, which comprises dial-up, broadband subscribers and Netscape users, reaches more than 4.5 million unique visitors per month, according to Arbitron. Individual users average five hours of listening time each week, with peak listening during the at-work hours of 11 a.m. to 4 p.m.

Overall, more than 16 million listeners currently access Internet radio each week -- a five-fold increase from five years ago, Aribtron reports.