Google still uses your individual search history to better arrange search results. At least I think they have - if they haven't yet, I read somewhere that that's what they will be doing.
That's as bad as XML being Extensible Markup Language. What wasn't it called EML?
Actually, the original list of candidates was:
XML- Extensible Markup Language
MAGMA- Minimal Architecture for Generalized Markup Applications
SLIM- Structured Language for Internet Markup
MGML- Minimal Generalized Markup Language
It is on the mailing list where the discussion took place, and a local poll of these names, that Jon Bosak suggested previously the use of X instead of an E. Although it's not "officially" declared as the reason the acronym came by; but the E-mail reads:
In my opinion, the U-combinations [referring to previous suggestions, which presumably had u's) won't fly, but if we allow "X" to stand for "extensible", then I could live with (and even come to love) XML as an acronym for "extensible markup language", and I hereby now throw it into the list of current proposals.
More to the point, XML was first created around the mid nineties. Look at similar emerging technologies at the time. DirectX, ActiveX, Internet marketed as "extreme speed" etc, things like the XFL ("Extreme Football League") etc. Also, you can think of the X mathematically, as a placeholder for anything, which is sort of what XML is about, too.
Also, EML was sorta-kinda already taken by Extended ML.