Google has implemented its algorithm update in the name of search quality and now it's adding another layer of personalization: Block the sites you don't like.
In a blog post, Google outlined the latest move.
Perhaps the result just wasn’t quite right, but sometimes you may dislike the site in general, whether it’s offensive, pornographic or of generally low quality. For times like these, you’ll start seeing a new option to block particular domains from your future search results.
Once you click block, you get a confirmation message and an option to undo the click. And when a domain is blocked you won't see in your future results. There will be an option to manage and show blocked sites if you change your mind.
The feature rolls out on Chrome 9 and above, IE8 and up and Firefox 3.5 and up.
Overall, I like this personalization approach. Algorithms are nice, but I'd rather make the call on what I think is quality content.
Can Google's algorithm do subjective quality calls?