Google Search Algorithm Secrets Revealed… maybe not.
Check out the blog posting by Google as they reveal some of the inner workings of the Google Search Engine, which handles billions of searches and attempts to delivery relevant results.
Over 500 changes to the secret sauce.
In 2010 over 20, 000 experiments and rolled up by a search analyst. Launch decision team
Raiders and the Sandbox
Showing results for, full page replacement
escape hatch
how often are users clicking on the escape hatch.
Hit on ideas that help users.
Over 100 signals, which are adjusted on a daily basis in some cases.
https://googleblog.blogspot.com/2011/08/another-look-under-hood-of-search.html