These ATMEGA328P Cheater Board PCBs by Kevin Darrah are a bare-bones style PCB for the ATMEGA328P-PU DIP IC. They were designed to act as a quick reference for Arduino related projects - especially when the ATMEGA328 is being used on a breadboard. Note that the board is a functional AVR development board, meaning that it can be made to be compatible with the Arduino IDE.
These do NOT ship with any components, only the PCB itself as shown.
Check out http://www.kevindarrah.com/wiki/index.php?title=Cheater_Board for instructions and a full explaination of these PCBs.