"Lead generation with email and social: On Facebook, you can select 'Create Ads' from the main drop down menu at the top right of every page. From there you can click 'Create a Custom Audience' and upload a CSV of your newsletter subscriber's email addresses."" Facebook's ""Custom Audience"" feature will identify your audiences by email and then you can create custom Facebook ads for your existing subscribers, who you know are more likely to respond to your campaign."
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