Such Great Heights
Since the release of Give Up early last year, Sub Pop records has offered the Postal Service's two lead singles available as free downloads on their website, and they've sold more than 300,000 copies of their album. Despite the fact that the songs have been downloaded, for free, 1.5 million times since then, Such Great Heights and The District Sleeps Alone have both been in the top 100, sometimes at the same time, on the iTunes Music Store for the past several months.
But I've worked with the music industry in the past... I'm pretty sure they still think we're all a bunch of thieves.