Wal I don't rightly know about that. I suppose Shotgun World is as good as any for a shotgun only type site.
Skeet is a game shot on a field that is basically a half circle. Originally it was shot on a full circle field but the land on one side was sold and the new owners didn't like shot falling on their land so it was cut in half and that's how the game became what it is today.
There are two houses high on the left and low on the right. Targets come out about 10' from the high and 3' from the low houses. They cross at a point 21 yards from stations one thru seven. Station eight is just inside the center line so the targets crossing point is just a few yards from it. A round is 25 shots, four at stations one, two, six and seven and two at stations 3, 4, and 5. At station eight you shoot one high and one low and if still straight repeat the low house. If you miss prior to then you repeat that shot.
In theory all shots other than station 8 can be taken at precisely 21 yards thus the wide open skeet choke used.
Trap is shot on a field of five stations. The trap house is placed out front and all shots are out going and rising. The five stations are in a straight line and you shoot from 16 yards to 27 yards behind the trap house. Since targets are all flying away from you and fast a more tightly choked barrel is most of the time used. Most folks shoot from the 16 yard line but in competition you are handicapped yardage based on your ability and can go back to as much as 27 yards from where the target sits before you call PULL. A round is 25 targets fired five from each of the five stations.
Sporting clays is supposed to simulate field shooting. It generally consists of 100 shots on up to ten or twelve stations. There really is no such thing as a standard lay out. It is up to each field owner to set the stations and targets to make the shots challenging. Some do it via distance and some by target presentation. You'll see targets going straight up called springing teal, mulitples of different sizes called a covey rise, incomers and out goers and everthing in between. The only constant is that no two set ups will be the same.
Shots might come in your face or so far out they will stretch your full choke 12 gauge gun. You are allowed to change choke tubes from station to station and many of the better shooters do just that. I am not one of the better shooters at the game but dang sure change chokes to suit the distances the next station present. What's tough is when one is in your face and the next at 50 yards. Over and unders are most common guns used.