Technology wise most of the websites are lame anyway appealing to the main stream user, why read someone else opinion you could have written it better yourself, especially if the website leans towards promoting specific product lines, because their palm has been greased!
Most don't really fully cover the overclocking aspect of things which is the only thing that interests me, because they really don't know what they're doing, so their review is like sticking a toe in the pool, discovering the water is cold and not jumping in.
Regarding CPU overclocking, where they stop is where I start, I don't think I can say it any simpler than that!
Good question though, as most down here avoid the subject of technology altogether!
That's why you never see any of the participants down here, up in the top of the forum where technology is actually discussed!