The following are potential sources for the parts used in these projects. The sources listed here are by no means the only sources, but are known to actually carry these parts and sell them in small quantities. Furthermore, this list is limited in that to vendors within the purview of our contributors, who are primarily within the USA.
Custom Printed Circuit Boards:
Advanced Circuits, Aurora, Colorado, USA http://www.4pcb.com/. We have tried a lot of board houses, and this is the only one we have found which is both affordable and reliable for prototype quantity boards. Besides, they do really pretty work. We either email or ftp our Gerber and Excellon files to them, and they ship us the boards. It really is just that simple. Highly Recommended.