If you're running a float center, you definitely have a newsletter. Right? If you don't, then you should. Most businesses these days have them. Establishing a newsletter can be a daunting undertaking if you're unfamiliar with the process. What goes in a newsletter? How frequent is too frequent to send it out? Who are you sending it to? 

Graham and Ashkahn dole out some wisdom on the importance of this correspondence method. Give it a listen.