I have done a lot of keyword research and I'm pretty good at finding keywords and seo'ing for them when I build a site. Right now I'm working on a site optimized for say 4 keywords. I want to cluster some keyword groups for this page to pickup some long tail traffic by backlinking using keywords my page is already relevant for or partially optimized for. My question is if I use Googles Keyword Research Tool and have it make suggestions from my URL. Would those be more relevant and have a better chance of ranking since Google is seeing them on my site as opposed to keywords suggested from another keyword? Any one tried clustering and linking to words suggested by URL?