Hi, You may move this button 'Sign up to receive a quote a day!' elsewhere. Currently, the center of attention goes to this green button. But, make this button look small, atleast.
Just like you have this floating array of buttons for sharing, you can create a floating button just for Signing up.
This way, the initial attention to this website is on the first inspirational quote, rather than on the Sign Up button.This way, any inspirational seeker is driven from the beginning. Hope you understand. These are my suggestions. Anyways, a nice, clean design.