Plans and Templates

Electric Herald Templates

Fantastic free plans and guitar templates in several file formats. I use these on most of my builds.
https://www.electricherald.com/guitar-templates/

How-Tos

Crimson Guitars

Ben from Crimson Guitars walks you though exotic guitars builds and basic luthier skills. Sometimes even super short timeline 6 hour builds. 
https://www.youtube.com/user/CrimsonCustomGuitars

Suppliers

I use parts sourced from several vendors. 

Amazon

I buy lots of guitar parts and most of my tools from Amazon. As a prime member, I get free shipping and lots of other benefits. Also, as an Amazon Associate, I earn from qualifying purchases. 

Guitar Fetish

I also buy lots of parts from Guitar Fetish https://www.guitarfetish.com/. GFS sells parts and full guitars. They also buy semi loads of factory closeouts guitar parts. You can find brand name necks and bodies for about $30 each. Their factory buyout section is worth a look/

 

StewMac

One of the largest luthier suppliers in the world. 
https://www.stewmac.com/

 

Wish.com

Yeah, OK from time to time I will buy a few parts from wish.com. Some times you find amazing deals, other times you get what you pay for.

 

Humble Pickups

I gotta give a shout out to Joshua Randall a fellow Wisconsinite at Humble Pickups. These are the sickest looking pickups I have ever seen and I need to get a pair for a future build.
https://www.humblepickups.com/