Many would argue that thorough and diligent keyword research is the most pivotal part of a successful search marketing campaign. Not only can it help you bring relevant traffic to your website and away from the competition, a deep dive can also help you understand what topics your target audience are interested in, and what vernacular they use in the process informing both content creation and link building opportunities. As promised in my ExactTarget webinar today "Get With the Program! Integrating Email within Your Overall Marketing Mix," here are some helpful tools to use when building keyword lists.