Heck, half of the US didn't have reliable access to the web until I think 2002?
And these late adopters, they are both non-english speakers and non-technical people.
Additionally, the early adopters, let's take my parents, who had Prodigy in about 1990, are now using the web more for things like shopping and content consumption, then they did in 1998.
If they wanted to watch the latest TV show, they can do that now online, AND they know this. Compare that to 2004. That will be reflected in the search terms.
Also, there are internet phenomenons that are at the order of that which we have not seen. Psy's videos on youtube for instance; 1 ba-ba-billion+? That's insane.
So yeah, Linux is left in the dust. Also, it's much easier than it used to be - take that from someone who's been using it since 1996 (?)
I need to do a write-up some time soon of how good we have it now - for my own memory.