I utilize Paul Falstad's Circuit Simulator to play around with circuit designs to understand how they work.
A Chemical Engineer that is an advanced DIY automechanic. He really pushes the concept of not being a parts changer.
Able to view people's complaints for Year/Make/Model. You can also access Recalls and TSBs.
A Professional Mechanic that shares his experience, his daily jobs, and tips and tricks.
Scanner Danner's brother. He is another awesome, ethical mechanic which creates videos to share his knowledge and know-how.
A Mechanical Engineer with a passion for cars. My favorite video is the one discussing the difference between Horsepower and Torque.
A general list of troubleshooting procedures to help the DIY mechanic get going on an issue
Under the [Technical Articles] section, numerous PDF files can be downloaded with great automotive mechanic content.
When placing an order, they will most likely have an expert available to help you purchase the proper parts.
Even if you don't own a fluke, the sections describing tests and how to interprete results are very informative.
One of the many great welders on YouTube. He taught me that MIG welding is something you feel and listen to.