Protostack have prepared a set of 3 atmega8 breadboard tutorials. The series I will describe how to build a basic ATmega8 circuit and program it with a simple program. This tutorial is ideal for first timers and part 1 covers the power supply.
In part 2 of the series, an atmega8 microcontroller is added to the breadboard, connected to power and 10 pin connector for programming..
The last tutorial in this series shows how to write a simple program and upload it to the microcontroller.
This is (going to be) a easy tutorial for starting out with basic AVR programming, and also a reference collection so that it sits in one place on the site.