 PLoS had been operating at a loss until 2009 but covered its operational costs for the first time in 2010, largely due to the growth of "PLOS One".The success of "PLOS One" inspired a series of other open access journals, including some that have been criticized as "megajournals" having broad scope, low selectivity, and a pay-to-publish model using Creative Commons licenses.In September 2009, "PLOS One" received the Publishing Innovation Award of the Association for Learned and Professional Society Publishers.