Every once in a long while you come across a tool that just gives you goose bumps, you are instantly infatuated. The Search Based Keyword Tool (SbKT) was that for me. The data it brings together and the transparency it brings is just so. . . sexy. Let’s see if you feel that by the time you are done with this post. I can tell you know that you’ll never think of Paid Search the same way! [UPDATE: Recently Google has folded the Search Based Keyword Tool into the core AdWords Interface. You can now access the keyword tool from…