03/31/2011 07:35 pm ET Updated May 31, 2011

PaidContent Names The Top Digital Media Companies

Few can question the rise of digital media, but arguably just as few can tell you who's leading the pack.

But paidContent did just that, ranking the top 50 digital media companies in the U.S. based on a number of factors, namely digital sales. If the sales figures were publicly available, that's the number they used. Otherwise paidContent established a reasonable estimate based on a variety of reports.

Overall it's a pretty solid list, but check it out for yourself to decide if you think these companies are leading the way.

Perhaps most telling is how these companies generate their revenue. Of the 50 companies on the list only 13 made their money be selling subscriptions or services (notably Netflix). The other 37 generate most of their money the old-fashioned way, through ads.

Click here for the full paidContent 50, or check out the top 10 in the slideshow below.