You may have picked up the news that both Google and Bing have admitted to having whitelists of  ‘nice’ sites that manually override their search and ranking algorithms (Google, Bing Have White Lists Of Sites Not To Be Impacted By Algo Changes http://blog.searchenginewatch.com/110310-175043 and Google contradicts own counsel in face of antitrust probe http://www.theregister.co.uk/2011/03/11/google_admits_search_algorithm_whitelists/). No big surprises there, as many of us have suspected that was the case for some time, but Google now also lets you set up your own naughty list and block selected sites from your search results. (We’ve already been able to set up nice lists for about a year – Google SearchWiki replaced with starred results http://www.rba.co.uk/wordpress/2010/03/12/google-searchwiki-replaced-with-starred-results/)

You first need to sign in to your Google account and then run your search as normal. For each entry in your results list there should now be a ‘Block’ option for the site.

Click on the block option and you will no longer see pages from that site in future searches. If you carry out a search that would normally contain pages from a blocked site you will see a message saying how many results were blocked. You can manage your naughty list and unblock sites by going to your Search Settings or clicking on the “Manage blocked sites” link that appears when you block a domain. Google says that it is not currently using blocked domains as a signal in search ranking but it may do so in the future.

Yet another way for Google to thoroughly mess up our searches.