Shirley Sherrod placed the blame for her ouster at Fox News's feet. Hardly surprising. She's a liberal (former) member of a liberal administration. More surprising, given the clear preponderance of facts contradicting this meme, is that much of the media has followed her lead.
Ironically, while a number of mainstream media outlets claim that Fox News is responsible for getting Sherrod to resign, Fox's first call for a resignation, made by Bill O'Reilly just before 9:00 pm on Monday, came roughly an hour after Sherrod had actually resigned.
In other words, Fox News exerted no meaningful pressure on the administration to take any specific actions with regard to Sherrod before the administration took those actions on its own accord. FoxNews.com had run a story earlier (no longer available on its site) displaying Breitbart's video and reporting what were then assumed (erroneously, it turns out) to be the facts of the situation - Sherrod had acted in a condemnable, racist manner.