Each day, Google usually produces one or more changes designed to improve our results. Some are targeted around particular developments. Some are wide changes. Last week, we launched a broad core algorithm upgrade. We do these regularly several times per year. Google described that core search up-dates happen “several times per year” and that while “some websites may note drops or gains,” there is nothing particular a website can do to tweak its rankings around these updates. In general, Google says to continue to improve your overall website quality, and so when Google runs these updates, hopefully, your website will be rewarded.