Not trying to be that guy but this is so wrong/misleading, it hurts (and I'm not even a physicist!). Spin isn't a "direction" and atoms don't "spin" -- well, they might, but the quantum kind of spin has nothing to do with angular momentum.
>In quantum mechanics and particle physics, spin is an intrinsic form of angular momentum carried by elementary particles
And
>In some ways, spin is like a vector quantity; it has a definite magnitude, and it has a "direction" (but quantization makes this "direction" different from the direction of an ordinary vector).
There's a reason it's called spin! I think what you're trying to get at is that it can't be understood in the traditional context of an object spinning, but the way that you're saying it is wrong.
Photon spin is actually a vector, as with all spin 1 particle.