*Note: None of the information in this thread is mine but has been gathered from various sources throughout the web.
The following youtube series gives a nice over view of the lore. (9 videos total)
https://www.youtube.com/playlist?list=PL7pGJQV-jlzCMqEAP49QApVHNJeZxxdL9
~ Credits ~
"The Witcher Theme" by Believe
Director: Josh Yebba (http://twitter.com/ShoddyCast)
Narrator: Erik Dellums (https://twitter.com/etdellums)
Writer: L. Zane Pinnock (https://twitter.com/IamDarthZane)
Editor: Austin Hourigan (https://twitter.com/arhourigan)
Lore Consultant: Michał "Tagaziel" Filipiak (https://twitter.com/tagaziel)