Some of us SEOs work on clients websites. Some of us work on our own. Some of us, maybe many of us do both. There comes a point, in certain projects where things seem to either take a stale position or you seem to have less progress than what you may have hoped for. When do you choose to move on from a keyword you've been working on optimizing? This post is really a question to the SEO community which, in my opinion, maybe a very hard one to answer.