Popup Opt-in Forms: Case Studies, WordPress Plugins, and Alternatives
Kikolani
MAY 28, 2013
Are Email Subscription Pop-ups Worth The Risk (2013) – Pop-ups are probably one of the best ways to increase your email subscribers. How to Raise Your Email Opt-In Rate: 3 CRO Case Studies on Overlays (2013) – Generally, a site with an overlay garners up to 400% more email opt-ins than a site that relies on an in-line form will.
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