What is "corporate censorship"

n. The use of corporate influence to limit freedom of expression achieved through refusal to sell a product, or refusal to advertise or allow airtime.(reference-book title=Why We Curse: A Neuro-psycho-social Theory of Speech author=Timothy Jay year=2000 publisher=John Benjamins Publishing Company id=ISBN 1556197586 url= http://books.google.com/books?id=nCQOpG4ODXIC&pg=PA208&ots=8Wiog5AFZk&dq=%22Corporate+censorship%22&ie=ISO-8859-1&output=html&sig=-oh7_aUMU9hWXTW_n-2yHl7APRk)

Corporate censorship is censorship by corporations, the sanctioning of speech by spokespersons, employees, and business associates by threat of monetary loss, loss of employment, or loss of access to the marketplace.