Appending different parameters to the end of the Google search URL string can often extend the Google search results into something that may be more tailored for your specific search. Joost de Valk ...

A new feature has appeared in the Site Configuration Settings Sections of Google Webmaster Tools. The setting, called Parameter Handling, enables site owners to specify up to 15 parameters that Google ...

Google updates Search documentation with standardized URL parameter guidelines, recommending "=" and "&" for optimal website crawling. Google recommends using "=" and "&" for URL parameters.

Google plans to deprecate the URL Parameters tool next month, saying it's no longer needed because Google can deal with parameters automatically. Google is sunsetting the URL Parameters tool in Search ...

I spotted this post via HackerNews named Google search parameters in 2012. It is one of the most comprehensive posts explaining what all the various URL parameters in Google's search URL strings mean.