Website Custom Audiences: Target Visitors with Facebook Ads – http://www.jonloomer.com/2014/01/28/website-custom-audiences-facebook/
Source
https://twitter.com/danielmcclure/status/611135957077766144
Website Custom Audiences: Target Visitors with Facebook Ads - http://www.jonloomer.com/2014/01/28/website-custom-audiences-facebook/