It's a hint at how future search engines will diversify. Eventually Google will become more like the yellow pages where you kind of already know where everything is, you just need its database to get the last mile.
Google will supply the commercial results, but not all of the world's information - only its most profitable information. If you want to know how to do something, how something works, you'll use a different, non-google indexer for searching, say, all of the "how to" sites: e.g. wikipedia, stack exchange, about.com, etc.
Google will supply the commercial results, but not all of the world's information - only its most profitable information. If you want to know how to do something, how something works, you'll use a different, non-google indexer for searching, say, all of the "how to" sites: e.g. wikipedia, stack exchange, about.com, etc.