If you own and Arduino you already own an In-System Programmer and I use that as the example for programming in Part 2. @Sanjay: I think Yet Another AVR Tutorial is exactly what we need.

SEBASTOPOL, CA--(Marketwired - Mar 6, 2014) - If you've been designing with Arduino and love it, you're ready to love the hardware that improves performance and increases your design options. Atmel's ...

[Juan] sent us his writeup of a microcomputer he built using an Arduino UNO (AVR ATmega328p) and some off-board SRAM. This one’s truly minimalistic. Have a look at the schematics (PDF). There… ...

Arduino microcontrollers have added Python to the range of compatible programming languages. Others can be used, and not just Arduino's own IDE app.

AVR USBasp is a USB in-circuit programmer and it can use to program most of the Atmel AVR controllers. It simply consist of an ATMega8 and a couple of passive components such as resistors, capacitors, ...

The Program-O-Tron has been designed to provide users with an SD card based AVR Programmer at an affordable price. Watch the demonstration video below to learn more about its design and features.