If you suddenly stop an ongoing SEO campaign, you'll eventually notice your website's keyword rankings begin to decline. Over time, your lower rankings and visibility will lead to declining organic traffic numbers. Until you decide to reboot your SEO campaign, be prepared for continued traffic and ranking decreases. Don't think of SEO as one-month project or a six-month project or even a one year endeavor. A truly successful SEO has no definitive end date. SEO should be viewed as an integral and ongoing portion of your overall busines marketing strategy and budget.