I have read in another post here for Rapidtags and I gave it a try as a free service. I made some queries and watched the results. They were good but not good enough. As far as I can tell (with not much experience on the subject) the results were generic. Not variable word endings, similar etc. It is not Rapidtags fault, or TubeBuddy's etc. It is not a matter "which service is better" it is a matter of creatively manipulating the words / phrases. I find it difficult a machine or bot to generate associative rather than similar words and meanings. What are your thoughts?