EagleCAD Tutorial – Eagle is only required if you want to modify the PCB design or design your own PCB; it’s a great piece of software and a free version is available. This tutorial is a great introduction.
Removing Solder Bridges – Video showing how to remove solder bridges with flux and solder iron only (better than using solder wick in my opinion and is cheaper)
Arduino Uno Board – I had a surprisingly hard time getting my hands on authentic Arduino boards. Even the ones I ordered from Amazon from the supposed Arduino store were knock offs! The knock offs out there should work just fine for the most part but I’ve had some quality issues with them so I stick to the authentic ones. Besides, it supports the open source philosophy. Out of conscience along, I’d recommend you buy Arduino brand. You can get the authentic one from the Robot Shop (cheaper if you’re here in North America) or directly from Arduino. I have had some trouble navigating the Arduino store though.
Soldering SMDs – This video gives you an introduction to SMD (Surface Mount Devices) and hand soldering them.
Soldering Fine Pitch Components – This video provides additional methods of hand soldering fine pitch components.
Gerber Files – This page provides straight forward instructions for creating your own Gerber files; near the end there’s a good summary of the Gerber file types.
The Electric Brewery – If you’re building an electric brewery, you need to visit this page. Tons of great information here from how to build the Kettles to building a Control Panel.
Thermal Stratification – An informative little video that talks about thermal stratification in tanks.