If you EVER want to drive free search engine traffic to your website, then without Market Samurai you're playing "SEO Roulette" with the odds stacked against you at 100 to 1, trying to "GUESS" the right keywords to target!
The term SEO (Search Engine Optimization) is one that is used much more commonly these days than ever before. This is mostly due to the fact that now the majority of the market will search the internet (Google, Yahoo, MSN) before anywhere else, when looking to purchase a product or service either locally or internationally.