So when Elegant Themes established that a newsletter subscriber is between 10 and 20 times more valuable, in terms of product engagement, than a social media follower, they set out to find a way of maximising newsletter signups. The result is Bloom, a WordPress widget that promises to increase the number of subscribers to your newsletter with clean, responsive design, and a simple UI. – Web Designer Depot
http://www.webdesignerdepot.com/maximize-customer-engagement-with-blooms-newsletter-sign-ups