The giant has properties in all but two of the top 15 categories visited after a user searches on Google.com--including "shopping and classifieds" (Google Base
and Google Product Search), "education - reference" (Google Knol, Google Scholar, Google Answers and Google Book Search), and "lifestyle" (Blogger).
"Health and medical" and "computers and Internet - games" are the only two major traffic-driving categories where Google is not represented, and Hopkins ponders whether we'll see a Google-powered metaverse like Second Life or a health-focused Google property emerge first. It may end up being the latter, and Hopkins throws a nod to Phillip Lenssen's recent Google Blogoscoped post (which detailed the Google Health portal possibly emerging from stealth mode) as the inspiration for this post.