For all the endless debates about monetization, it’s easy to lose sight of which companies are actually generating significant digital revenues. Welcome to the paidContent 50, our inaugural list of the most-successful digital media companies in the U.S. We examined every company we cover (and more) to determine the 50 that are bringing in the most money from online content and online advertising. For each company, we offer not only their digital revenues, estimated in some cases, but also a snapshot of their business strategy and a look at some of their key moves over the last year. We think you’ll find some surprises. See the list here.