The glorious history of the Mac
The 20 Macs That Mattered Most, a historical article since the Apple's totally revolution in design and the GUI is truly a story worth telling. And as this flic wasn't enough The Folklore is a huge site with the stories of the glorious past of the company of design, geekish ideas and Jobs.
And at the Super Bowl this year Apple did celebrate their twenty years with putting up their classic TV-ad "1984". But hey... there's not Apple if they didn't use the opportunity to show their constantly on-going development: see for yourself.