The idiots who create/sponsor/whatever those stupid ads haven't got a clue what the hell they're supposedly giving away half the time (if ever). They obviously use search engine results to target the phrasing to a certain degree, but some of the stuff they come up with is almost humorous. Take for example, the following nugget of ignorant shilling:
**
Grand Theft Auto Cheats**
Quality Pre-Reviewed Resources For
Grand Theft Auto Cheats

Found at a GTA fansite! Where, you guessed it, all the cheats for all of the GTA games are already very easily found on-site. And this one isn't near as stupid as the other one that was beside it last night, which was an offer to give the best rate on a GTA demo! Wow, I only pay rock-bottom prices for video game demos!

If there is one truth that you can rely on, it is this: people are retards.