Learned anchoring from climbing buddies, /r/climbing, John Long's Climbing Anchors, and this guide.
It's not a good anchor. This is a good book on anchors you should read to get an understanding of what a good anchor is.
Awesome, I'll give it a whirl!
So far my knowledge comes solely from Climbing Anchors and How to Rock Climb, but I am definitely planning on taking a course!