A comprehensive comparison of PCB Prototyping using commercial board manufacturers vs. using a CNC milling machine. Based on Andrew Sterian's experience using each at Grand Valley University.

site with information on various pcb fabrication methodologies, setting up a pcb shop, and they also sell drill bits and other pcb supplies

very well done article from pcbprototyping.com which outlines exactly what the title says. A good place to start for people interested in what isolation milling is all about.

guide to how to make a PCB for hobbyists. Includes PCB layout concerns to improve hand solderablility

discussion on how to determine proper trace widths based on the neccessary current carrying capacity.

Tables of trace width and associated current capacities at various tempatures

reference to the various IC package types

decent sounding text to speech converter which can be very easily integrated into an existing design and the board is comparable to the size of a quarter.

this page is a list of sensors and where you can buy them. Sometimes it's easy to find a chip made by a certain manufacturer but then hard to find a distributor. This page takes all the leg work out of it.

a ten page guide on creating a board using eagle PCB

myHTPC is a highly customizable,menu driven front end that allows you, among other things, to launch external programs, browse pictures and large collections of almost any type of media stored on your computer.

A Guide to Simulating and Programming PIC Microcontrollers using the MPLAB IDE program and either the ICD (in circuit debugger) or the PICSTART Plus programmer.

contains information on using mosphets, relays, and darlington transitor pairs to drive various outputs from a PIC.

A page of links which provides all the neccessary information on ICSP

encrypt data with your pic

Article which describes the different parameters that can be found in crystal datasheets.

Links to a page on Pete Freitag's website which lists 30 different cheat sheets for programming languages.

Need help identifying a bolt, nut, screw? Trying to learn about materials? Need Size Charts? It's all here. Check out their Printable Fastener Tools section!

I wish i had found this site before i wrote code to get data from a GPS receiver for a WinCE device. It explains every facet of the Windows File interface as it's applicable to RS232 reading/writing. Also, a great hardware ref. See links on left.