Behold the latest example, from someone selling information, producing videos etc:
American vs. European style options:
American style options such as OEX or SPY can be traded anytime. European style options can not be closed until their expiration date. I prefer to trade American style options since I can buy and sell them out when I want.
Of course European style options can be traded into and out of, anytime, just as American style options can. Jesus! We ALL know that one don't we? (For the newbies reading this, American or European style refers to when options can be exercised, not whether they can be closed out or not.)
Further down the page, we are served up this little beauty, in big bold type:
Turn $1000 into $124,000 in One Year!!!
Where do I sign?