YouTube is on track to lose half a billion dollars this year, according to a report by Credit Suisse. Despite its massive, world-wide popularity, the video sharing site is still dogged by its inability bring in much revenue through advertising and partnership deals. The question now is how much longer the site’s owner, Google, can stomach that much red ink. Some observers say YouTube may have to switch course, perhaps towards a system in which some users must pay to add content. But one thing seems clear: the status quo is no longer a viable option.