2. You need to own your relationship with readers
As mentioned above, social media platforms come and go. Your website is here to stay. When a visitor to your site provides you with their contact info, YOU own that relationship — NOT Facebook or Twitter — and YOU get to decide how and when you communicate with those readers. Your website is one of the best tools available for building your email list. And email is forever — unless someone gets a new email address and closes the old one, which is becoming rarer these days.
Great advice from BookBaby.
(A company I love, because of CD Baby...) :-)