Bass Player magazine has posted all the artist clinic videos from Bass Player Live 2014 which includes Wojtek Pilichowski, the guy from Dirty Loops, and other notable players. Worth a look no matter what kind of style you are into there is a little of everything.
https://www.youtube.com/playlist?list=PLurpu-f5GDph3dKIidpAi7pTLMCQCJYke