diberry - 8:42 pm on Jun 7, 2012 (gmt 0)
Actually, that's really funny... I didn't think to mention this, but the day I had that very distinctly different set of keyphrases - what was so distinctive was how many of them began "how to", which is a phase I've never really ranked for. Looking down the list of searches that had brought me Googlers, it was just "how to..." at the beginning of almost every line. That's what was so odd.
And yes, I've noticed what you're talking about with how to. I find it very suspect, because if you search for "how to [something ehow has no article for]" you will STILL get an eHow article (or several) with some of the same words in it as your top result(s). Even Wikipedia only gets the top spot when they actually have an article on the topic. Even if I knew nothing about webmastering, I'd suspect eHow and Google had a special relationship. It's just too bizarre.