Google is all set to open its search results to annotation, alteration, and public comment with the aim to enhance user engagement and improve ad revenue potential. 

On Thursday, Google unveiled SearchWiki, a way to customize search results as they appear to one specific Google Account. The good thing is that users can re-rank search results, delete them, add new ones, and maintain notes about specific sites. 

In a blog post, Google product manager Cedric Dupont and software engineer Corin Anderson explained, “With just a single click you can move the results you like to the top or add a new site. You can also write notes attached to a particular site and remove results that you don't feel belong. These modifications will be shown to you every time you do the same search in the future. SearchWiki is available to signed-in Google users.”

The notes and votes of Google users are publicly viewable though they cannot alter the search results for others. 

Through the Customize Google browser extension, the Firefox users have had access to similar features for years. 

The Google search results page can be altered by the users through Customize Google by removing ads, adding links to other search engines, adding numbers to specify search result rank, filtering results, adding links to the Internet Archives, anonymizing their Google cookie ID, and many other things. 

As of now, Google's SearchWiki is not available to all Google users and it may take several hours or days before SearchWiki becomes available in a given area.