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An example of Apple doing parallax right is the new iMac page: http://www.apple.com/imac-with-retina/ At least the top image effect is very well done IMO and does a very good job conveying the central premise of the new iMac: looottts of pixels. Having said that I really dislike what happens lower on the page where the iMac image stays pinned on the left and the descriptions scroll normally on the right. It's totally…
That's a really bad example. I suggest www.kennedyandoswald.com/
That's not a great example either. I can't grab the scroll bar and go to the top or bottom of the page since they have their own custom scroll bar that doesn't work like it should. Also Page Up and Page Down don't work.