I've been playing with the BeagleBone Black for a long time now.
If you're just getting started I've created a 4 part series on how to get started with the BeagleBone Black.
You can access the complete list of tutorials here: http://randomnerdtutorials.com/category/bbb-series/
Or you can choose a topic that interests you:
Thank you for reading and I hope you find this information useful.
If you have any questions feel free to ask and I'll try to help you.