Wow, what a resource.
I just found progressiverock.com; a massive timeline of Prog, from 1967′s proto-prog Sgt. Pepper’s Lonely Hearts Club Band, all the way through Pink Floyd’s bloated radio-rock opus The Wall, featuring reviews of pretty much every major prog-rock and krautrock album in between.
There are reviews of major works – The Yes Album, Thick As A Brick, Brain Salad Surgery, Trick of the Tail; but also of minor but important acts like Jade Warrior, Premiata Forneria Marconi, Camel, Gentle Giant, etc.
This is a work of major geekery, arranged in cronological order. And importantly, while the dude who wrote all this is a fan-boy, he generally gets it, nailing both why the particularly great albums work, and why the over-rated ones (like The Wall) are not all they’re cracked up to be.
It’s an impressive piece of work; and for stoner prog-heads like me, it’s like a personal, bong-hit-and-black-light history of my teenage years.