If we learn nothing else from the Shirley Sherrod experience, please learn this: Before posting so-called facts, you must (1) ask "is this complete?", (2) what or who is the source?, (3) what is the context?
This wasn't just bloggers who jumped the gun; the jerks at Fox Noise expanded on it, organizations like the NAACP acted precipitiously, and the administration over-reacted.