Google is turning to the public (or rather, web developers) for help testing its next-generation search infrastructure, code-named "Caffeine." The changes have to do with the way Google crawls the web and indexes content, so you shouldn't notice any changes int he search engine interface.
In order to try out the new version, visit www2.sandbox.google.com, and start searching. You can share feedback with Google by hitting the "Dissatisfied? Help us improve" box at the bottom of the page and sending a message with the word "caffeine" in it.
Overall, the search results look pretty similar, but there are a few minor changes. Some items may be ordered a little differently, while the text descriptions of some pages look different.
If you aren't particularly interested in testing the new technology to help Google out, here's another reason to give it a try: As far as I can tell, there are no ads on the Caffeine interface. I've conducted a few dozen searches, and so far I haven't seen a single sponsored result. Of course, that'll change by the time the new code is integrated into Google's main product. But it's nice while it lasts.
What other changes have you spotted? Let us know in the comments.
