While Microsoft and Yahoo! have been spending time hashing out a new search deal, Google has spent the past few months secretly working on a new search architecture. The new architecture is only seen by "power users" and web developers.
Now, they're ready to test the architecture with a web developer preview. You can take the new search for a spin at http://www2.sandbox.google.com/.
Here's the type of feedback Google is looking for, per the Google Webmaster Central blog:
Right now, we only want feedback on the differences between Google's current search results and our new system. We're also interested in higher-level feedback ("These types of sites seem to rank better or worse in the new system") in addition to "This specific site should or shouldn't rank for this query." Engineers will be reading the feedback, but we won't have the cycles to send replies.
To give feedback, click the link at the bottom that says, "Dissatisfied? Help us improve." When you give your feedback, include the word "caffeine" at some point in the text box before submitting.
Of course, here at SEW, we'll take any type of feedback. Take to the comment section below to let us know your opinion about Google's new search architecture.