If you have a google account you will now be able to customise your search by re-ranking, deleting, adding, and commenting on search results.
You can move your preferred results to the top or add a new site. You will also be able to remove results you don't like and write notes about a particular site. Changes you make will be saved for next time.
This new feature is designed to make the search much more useful for people by making it more dynamic. The changes will only affect your own searches. However others will be able to see any notes you made via the comment button.
All comments can then be seen by clicking on the ‘See all notes for this SearchWiki’.