If you are interested in knowing more about how Google goes about creating its search algorithm, check out this article (which also includes a video clip) by SearchEngineLand.
Here is what happens, in a nutshell:
- Search quality team meets every Thursday to discuss changes to search algorithm, tweaks, new features and test results.
- Google team members go into the minutest details with search.
- The focus is on how search can work better for the user rather than how to generate more revenues, as reported by Danny Sullivan.
Here is the link to the article and the video once again, to know more about what goes on inside Google.