Can’t the folks who write and edit the Yahoo! front page agree on anything? Do they own a dictionary or know how to access a dictionary on that newfangled Internet? Apparently not. Somebody at yahoo.com thinks this is the correct spelling for the past tense of cancel:
and somebody (who knows, maybe the same person!) thinks it’s this:
According to the American Heritage Dictionary (which is the resource they’d find on the Yahoo! network, if they deigned to consult an authority), the preferred spelling is canceled, though cancelled is acceptable. One or the other, guys. Not both.