Recently, I've seen a spate of "Obama grants Amnesty" ads show up on daily Kos. My response has been to shrug and laugh, saying "Well, that's a wasted impression, and someday I'll get around to clicking the ad to cost whoever has been pushing it at me some money."
So, today, I saw that ad, and decided I was going to click it. (Once, and stay on the landing page for at least a minute -- otherwise, the ad network will may detect click fraud and not charge for the click.) So I dragged my mouse over to that, and that's when I noticed the text in the lower left "Sponsored by FAIR". That's these folks. Folks the SPLC has labeled a hate group for several years now.
Now, look, I grant that it's wise to show ads from the right. At worst, it costs them money; at best, it provides comic relief. But hate groups?