A handful of analysts are calling for the music industry to focus less on CDs, digital rights management, and subscription services, and more on giving their product away for free. Whatever gold that is still left to be mined from the music industry is supposed to be had through advertising revenue, according to some. But exchanging songs for ad money is a frightening proposition for music executives who have depended on hawking discs for decades, and are still putting up major roadblocks for the free, ad-supported model. (News.com)