Reply to One stop shop for Traktor S4 info?

I've been searching around this community and other websites which provides a one stop resource for all newbs (like me) regarding the functionality of the Traktor S4 controller, including but not limited to advanced "shift" button functions, FX, mapping, etc. I do understand that DJ Techtools released a DVD for this piece of hardware, but I am more interested in learning all of this for free, preferably off the internet.

Does anybody have any good recommendations? Many thanks!