Does anybody understand Google previews? For page 661 it just says "This page is not part of this preview", but for page 662 it says "This page is unavailable or you have reached your viewing limit".
This suggests to me that maybe some people can see page 662 even if I can't, maybe I can see snippets from page 662 if I know what to search for, and maybe the page will be visible at a later date.