Atmel AVR Resources

Hardware

ATMega16 Summary Data Sheet
ATMega16 Data Sheet
AVRmini Schematic (v3.1)
AVRmini Page

Software

AVRlib Online Documentation
AVRlib Homepage
AVR Software page compiled by Pascal Stang. Look here for distributions of the windows AVR Studio IDE, avr-gcc for windows and unix, as well as windows terminal emulation software.
AVR Freaks

Resources

AVR LIBC Reference
Embedded Systems page at SCU Robotic Systems Laboratory - Lots of useful example code and support for AVR Atmel development.
Installation Instructions For AVR-GCC and friends on Mac OS X (Direct build of source code)
Installation Instructions For AVR-GCC and friends on Mac OS X (Fink package method)