Google has officially confirmed the new search engine juju on which they’ve been working, previously in secret, for the past several months, now code-named “Caffeine”. Google Caffiene provides a new search infrastructure and algorithms that are intended to provide enhanced indexing speed, accuracy, and “comprehensiveness”, among other things, according to Google. Now Google is inviting folks to test Google Caffeine and rate it against old-formula Google, which we hereby dub Google Decaf. But will it give web publishers a Caffeine headache?