Looking for online learning/workshops on Estim

[MisterPibb]

I've been doing Estim with a TENS device for a while now and looking to "up my game" a bit and am looking for any online forums, lectures or workshops on the topic.  All responses welcome.

[MasterAidan]

Check out PiShock, or DeviantDesigns, they both have a large community focused on E-Stim, or on sextoys and especially DIY toys as a whole.