What is Google Dance?
 

What is Google Dance and How Does It Effect on SEO?

This is from Webopedia:

"In search engine optimization (SEO), Google Dance is an out-dated slang term used to describe the period of time in which Google used to rebuild its rankings, and as a result of this rebuilding, rankings of Web sites on Google's SERP may fluctuate in order during a several day period. The "Google Dance" would happen anywhere up to 36 times per year, however in 2003 Google begun updating its index on a weekly basis, which all but eliminated the Google Dance."

Google Dance is a real effect that has measurable consequences in a particular website’s rankings after some on or off page optimization.

Google Dance is a term which is utilized to depict major index update by Google search engine

Google Dance is a term that refers to major fluctuations of keyword rankings in Search engine result pages. This is when Google updates its entire database of websites, which usually occurs at the end of each month. It is called a dance because there can be a remarkable shift in the rankings as Google updates some sites being more related than others.

Google Dance is an out-dated slang term used to describe the period of time in which Google used to rebuild its rankings, and as a result of this rebuilding, rankings of Web sites on Google's SERP may fluctuate in order during a several day period.

when google update and collect our data and major changing in google that's google dancing.

Google dance is basically the changing of algorithms and this happened when search engine are making the updates.

Google updates on the site ranking and quality content and check the site all process.
This is procedure called Google dance which changes frequently as per requirement along with algorithm.

Ah, so Google Dance is just a slang term, not anything official? Here I thought this was some sort of wacky new product Google was launching :)