I wish people would stop using the generic 'MacBook' when talking about 'MacBook Pro' and 'MacBook Air' - makes it very diffcult as a 'MacBook' owner to find support articles.
Well, there aren't that many things specific to them unless you're talking hardware specs. They're all part of the MacBook family, so it's valid to call them that.
I'd blame Apple who decided not to name the 12" and left it only with its family name. Sure, that's how it used to be, but post 2000s that's just not a model name anymore on its own, anymore than iPhone or iPad is.
Think "12 inch MacBook" probably would find the most hits, though. Probably even better than the "MacBook -pro -air" thing I suspect you were doing, since those two get mentioned in the same articles a lot.
At least they've mostly backed off the "The New <old name>" type crap they were doing with iPad 3, etc. You want to talk hard to search for...
