Sites I figure you've seen by now....

[waltjp]

The most telling quote is this:

"In fairness, I'm willing to accept that officials can't see everything (thought it's pretty pathetic that a professional NFL Official would miss such a blatant penalty). In Major League Baseball, for example, what will often happen is that the umpire will make up for the mistake by letting something slide later in the game, or perhaps calling a close play the other way."

Ahhh, fans....Can't live with them...Can't kill 'em.

[OverAndBack]

(thought it's pretty pathetic that a professional NFL Official would miss such a blatant penalty).

Another guy who's never tried to do this and thinks it looks pretty damn easy from the couch.