Google Analytics official online tutorials, plus Web Analytics TV With Avinash Kaushik and Nick Mihailovski.
The tutorials are short and to the point. Analytics TV are longer features hosted by Analytics expert and author, Avinash Kaushik.
Avinash wrote the book 'Web Analytics an hour a day' and also blogs about web analytics.
Google Analytics' YouTube channel
Occam's Razor - Avinash Kaushik's analytics blog