Each week (on Thursdays), Google engineers meet to go over anticipated changes and improvements intended to be rolled out onto Google.com. It is interesting to see how much detail goes into each of these decisions. Whether or not a new component will be added to Google search, is decided in these meetings, this one on misspellings and rolling out a change to Suggested Search.
Google recently released a list of 50 changes on its blog “Inside Search” which stated: “We’re starting to get into a groove with these posts, so we’re getting more and more comprehensive as the months go by.” The prior month was 40 changes, and the month before that, just 17.
This video gives a glimpse into these meetings which are called “Quality Launch Reviews”.
Below is an older video which goes into the many changes made to the algorithms throughout a typical year.