These are the best places to get support and/or get you started on your pixel journey.
xLights - the website provides resources to help you understand pixels and how they work. Excellent place to start your journey.
Official xLights Support Group | Facebook - the support group has many people that are available to answer your questions and also provide you with feedback.
PixelController, LLC - you can purchase your falcon pixel controllers here.
Kevin Jones | Facebook - Kevin will hook you up with a custom built pixel controller that fits your needs. If you are like me that likes to spend your time building props and want a clean looking setup for your controller, Kevin is the guy you want, contact him for more information.