Congratulations to OS X Help with their “Insanely simple tutorials for the first time Macintosh user”.
The site is exclusively targeted to the Macintosh user who just unpacked their new computer.
It looks as though they started up recently, but they have some nicely written, straightforward tutorials on their site. Topics so far include working with Safari, keyboard shortcuts, video formats and the Finder.
For even more Mac help, Tips and Tricks, of course, explore the archive of more than 600 tips and tutorials, spanning more than 6 years, at the MacTips archive.