Kudos to http://labs.google.com/ for anticipating the question of "what's going on with Google these days?" Great googly moogly, that web page is a study in elegant simplicity! From their Experimental Search section to the classics like Google Suggest (which has graduated to Google Toolbar), visiting their virtual lab is an effective way to better one's google-fu.
What's your impression of their open lab? (post a comment to respond)