The Trickle Down Effect consists of three levels.
The first level is the "Followers" level. This level is all the followers you have on Twitter, Facebook, Google+, and everything else. These followers have minimal loyalty. Some of them may only be following you because you are following them. You still have some influence over them and can tell them about your projects, your books and all that. What you really need to do is connect with them to get them to trickle down into the next level. You can do this by generating interest in you and your books and also asking them to sign up for your newsletter.
The second level is the "Subscribers" level. Subscribers are those who get your weekly or monthly newsletter, read just about every blog post, and ultimately are pretty loyal to you. You have more influence with your subscribers than you do your followers. Eventually, by strengthening the connection you have with your subscribers, you will be able to make more sales to them and turn them into loyal customers. You also need to give them some love by offering little freebies here and there.
The third level is the "Loyalty" level. These are the people who actually buy your books and love them. Loyal Customers will keep coming back for more as long as you treat them good. Keep your books high quality, offer up a free short story every now and then or maybe even a postcard. You should also ask their opinions when you need it. Just keep them happy and you'll find that more and more people are becoming your Loyal Customers.
With that, I'd love the chance to make you happy. If you'd like to sign up for my newsletter, head over to my website at the link below. I'll be giving updates on my projects and giving out free short stories every so often too! If you'd like to join the fun, check it out!