Interestingly enough, that list doesn't include misleading ads. That probably explains some of the ads that are designed to prey on less computer savvy users like "download PDF" button ads that are served by Google's display network.

I didn't expect to find hock vs hawk that interesting. I wasn't sure which was correct, so I looked, and...

Hawk is a verb: to sell on the street. Ex: He hawks goods on the corner.

Hock is a noun: debt or pawn. Ex: He got his watch out of hock.

Thanks nathancahill and Merriam-Webster!