coveybuster

Hello, I'm new to the sport and would like to know the difference between trap and skeet. I've heard several people refer to what my buddy and I do as one or the other and I'd like to know which one is correct. I purchased a Baikal 12ga. semi (not a bad gun on a budget) and a thrower from a local gun store and started having a great time. I'd like to pursue this sport more avidly but I'm not quite sure what to call it and therefore not sure what questions to ask. Thanx.