Welcome to WebmasterWorld Guest from 126.96.36.199
Forum Moderators: werty
Their is a company out there providing a search advertising interface that generates a ton of "related" keywords spam on their searches/content. They mention G/Y/M as examples in their documentation.
ie. if you have a phrase set to exact match for "red steel wigets", they will still manage to display your ad even if the surfer searchs for "blue plastic widgets".
I'm not sure about posting links to them on this board.