The new search would let logged in users sort/rate their search results:
This experiment lets you influence your search experience by adding, moving, and removing search results. When you search for the same keywords again, you’ll continue to see those changes. If you later want to revert your changes, you can undo any modifications you’ve made. Note that this is an experimental feature and may be available for only a few weeks.
These results will not only let you move things – but it will let you suggest a better result and put that at the top of your results list. This info will be personalized to you (hence the fact that you have to be logged in). Sounds like it might be interesting to try out – but probably not something I’d bother using on a regular basis. We’ll just have to wait and see what happens.
Learn(includes a diagram).