itwbennett writes "Internet radio service Pandora Media on Friday filed documents with the SEC for an initial public offering of common stock. In its S-1 filing, Pandora said it has more than 80 million registered users and a more than '50% share of all internet radio listening time among the top 20 stations and networks in the United States.' While Pandora said the 'number of shares to be offered and the price range for the offering have not yet been determined,' MarketWatch reports that the music service hopes to raise up to $100 million."
