In an effort to gain more business to their exponentially-growing online network, Internet radio site Pandora is planning on targeting local advertisers. By partnering with AdReady, a company that helps smaller advertisers place display ads with publishers, they can now target smaller companies using the zip code from a listener who registers for the site. Pandora’s VP of performance ad sales Brian Mikalis says “One of the differentiators from other traditional sites is every single one of our users registers and gives us their zip code, so we can do that local marketing down to the DMA level very easily.” The website ClickZ says the Pandora sales force had been dealing with “a swell of inquiries from local advertisers that were taxing Pandora’s national sales staff.” Pandora now boasts over 45 million registered users, and already carries national ads from companies including Proctor & Gamble and Microsoft.