PageRank was once at the very core of search – and was what made Google the empire it is today. Toolbar PageRank vs. PageRank. (The Google Dance later became the name of an annual party that Google ran for SEO experts at its headquarters in Mountain View.) Google’s PageRank algorithm, then, was revolutionary. How PageRank WorksThe formula for PageRank comes in a number of forms but can be explained in a few sentences.