Late on Friday we sent out an alert on Pandora filing for its IPO, including details of revenues and other costs. Since then, various sites have been digging into the document. VentureBeat has found a section where Pandora indicates an intention to get into non-music content, including sports, talk and news. Meanwhile, PaidContent finds the section relating to Pandora’s fallout with ASCAP in the US – their deal expired at the end of 2010. “We believe that royalty rates sought by ASCAP are excessive,” says Pandora’s IPO doc, bluntly. Digital Music News tots up the numbers and finds Pandora has paid well over $100 million to music rightsholders since 2007.