If New York Literary Agency is a scam, then is Zack of Zack Company a nitwit for having their advertising on his site?
I think (and please, jump on me if I'm wrong) if you sign up for ads on your site, you get what the keywords send you. So, if you write about publishing you get all the advertisers that keyworded "publishing" as places they wanted to be seen.
I've been taken aback more than once reading a website that was screeching bloody murder about scam publishers, only to see an ad for one of them on the site itself.
This is going to be one of the interesting problems of the future: how to generate revenue for websites that eat bandwidth (like AW) without being at the mercy of everyone who wants ad space on your site....although I'd LOVE to see ads for something like P&E or Writer Beware on the AuthorHouse website!
To quote Maud Newton: "this site is not for sale".