In seo (SEO), Search engines Dancing is an out-dated terminology term used to explain the timeframe in which Search engines used to restore its positions, and as a result of this restoring, positions of Web sites on Google SERP may go up and down in order during a several day interval. The "Google Dance" would happen anywhere up to 36 times per year, however in 2003 Search engines started upgrading its index every week, which all but removed the Search engines Dancing.