Pandora Media is launching free on-demand music with 15-second ads, in an effort to boost declining revenue and users. In doing so, it inches closer to rival Spotify’s model. According to one source, the user will be able to queue up 15 minutes, 30 minutes or an hour of specific songs for every ad watched; the company is still testing models that mix music and ads. By offering free songs in exchange for ads, Pandora hopes to entice listeners to sign up for its $9.99 per month Premium on-demand tier, which was introduced in March. Continue reading Pandora Hopes to Convert Users with Free On-Demand Music