I think that the majority of those are common knowledge. The only ones I didn't know were the Windows 7 ones and Windows+D. And as mentioned Ctrl+Z is one of the main ones missed. On another note, I use Ctrl+F5 all the time, it refreshes your browser, clearing the cache for that page. Very useful for web development.
Many, if not most, of the Mac OSX substitutions are incorrect. For example, the task switcher is activated with Command-Tab, it does not switch to another tab within the browser. That's CTRL-Tab, just as in Windows. Did you actually try these on a Mac?
Hey mareich, Rico here. You're right. Ctrl+Tab is still works the same way on Mac OS X as on Windows and Linux. I've made the necessary corrections. They should appear once the site's cache refreshes. Feel free to point out any errors, and thanks for the support!
Ctrl + Left Arrow - move the cursor to the beginning of a word
Ctrl + Right Arrow - move the cursor to the end of a word
Ctrl + Shift + Left Arrow - select the word to the left of the cursor (cumulative)
Ctrl + Shift + Right Arrow - select the word to the right of the cursor (cumulative)