From a paper by Benjamin Liebman just published in the Columbia Law Review:
Over the past decade, the Chinese media have emerged as among the most influential actors in the Chinese legal system. As media commercialization and increased editorial discretion have combined with growing attention to social and legal problems, the media have gained incentives to expand their traditional mouthpiece roles in new directions. As a result, the media have emerged as one of the most effective and important avenues of citizen redress. Their role in the legal system, however, has also brought them increasingly into conflict with China’s courts.
It is available as a PDF file here.