This is a WordPress plugin that allows you to let your users subscribe your MyMail lists via social networks and without any worries about filling the form field to subscribe. You can make a lot of things, such as show confirmation window or don't, you can send confirmation messages to confirm the user email or not and much more! Your public can subscribe your newsletter via Facebook, Hotmail, Google, LinkedIn, VK and by just typing the email. What's the bonus? Users do not have to confirm the email because the email is already "confirmed". You can collect their First, Last Name and e-mail! It's really simple to configure the plugin, I made an awesome tutorial you can found it in the tab "Help"!