Charles has a great article on retargeting your Facebook ads.

Facebook: A Step by Step Guide on Retargeting Ads on Facebook

By Charles Ngo

Back in the “good old days”, you used to be able to run ads and get clicks for pennies.

It was fantastic.

Put up an ad, throw a couple hundred dollars into it, and you could create a tsunami of traffic for your offer.

But the good old days are gone, and running ads on Facebook is getting more and more expensive. There’s more competition than ever (and because apparently being a multi-billionaire isn’t good enough for Mark Zuckerberg…)

But if you know the right tactics, you can seriously drive DOWN your ad costs and INCREASE your ROI.