If you have ever tried to build an opt-in list out of thin air, you already know how difficult it can be. There are quite literally dozens of excellent tools and techniques available for generating traffic and building an opt-in list for your website (and hundreds of ruthlessmarketers who will gladly promise you the world and take you to the cleaners). This article provides some useful tips on how to build a profitable and responsive opt-in list but without having to depend on pay-per-click or money-hungry marketers.