If any of you are interested, here are some statistics about average click through rates for facebook and twitter ads.

"TBG’s report looked at click-through rates of Facebook ads – both mobile and desktop – and compared them to Twitter ads in the user feed. They found that Facebook ads on desktop has a CTR of .588%, and mobile ads nearly doubled that at a rate of 1.14%. By comparison, Twitter ads had a CTR of .266%. That means, on average Facebook ads (mobile and desktop) are around three times as effective as Twitter ads."

Source:http://www.webpronews.com/ad-nauseam-are-facebook-ads-really-worth-it-2012-07

The article has a lot more info on facebook ads. It seems, and I paraphrase, it sucks to advertise on facebook.

Here's the link of 'the opposite point of view." Zappo's getting far better results: http://www.businessinsider.com/zappos-social-media-guru-just-revealed-facebooks-hidden-ad-secret-2012-6
(they say they get 3.5 dollars for every facebook ad dollar spent). They give you the reason they think they're making money. Something to learn from them.