The short answer is: not yet, but you need to play with it anyway. Google Search Wiki is a huge new feature from Google. It lets you re-rank the results you get from a Google Search to your own liking. These changes are not normally visible to other users (yet) but they can click a link “See all notes for this SearchWiki” at the bottom of each Google search page to see all re-rankings for that particular search.
Long term this has huge ramifications as it makes Google search results more socially malleable. You should actively rank your sites to the top for all the search terms you care about now so that as more people discover this feature, they will see your sites and comments for their searches. You should see very small short-term gains in traffic if you hit major keyword searches.

{ 1 comment… read it below or add one }
Karrine Her Media 12.09.08 at 2:54 pm
Adam
You have added to my never ending to do list. As a user I am ecstatic. As a publisher I am wondering how this will affect search results in the long term.