It's my understanding that 'spooky action at a distance' works something like this:
I have a box with a pair of shoes, and I separate them, and put each in a separate box without knowing which is which.
The two boxes are transported to the far ends of the earth, where lo, and behold, one of the shoes turns out to be a left shoe, and the other turns out to be a right shoe.
Now, let's take a look at a pair of electrons that are 'linked'. That means that their net spin is zero in any direction - or that the two electrons have opposite spin.
Because spin is a vector (like angular momentum) it has a direction. Clearly in order to cancel, the spin of the electrons must be in opposite directions.
Because it is quantum, measuring the spin of an electron in a particular orientaion will either give you a measurement of 1 or 0, even if you pick a particular direction that you measure in.
So, if you have two electrons that have collided, and then separated, and run them through parralel spin detecors in matched pairs, the total spin will add to zero.
The trick is that this holds regardless of the orientation of the spin detector, and that there appears to be some sort of synchronization between the two electrons despite the fact that they are separated.
This appears to violate the relativistic notion that information cannot travel faster than the speed of light because the electrons can be separated, but do not 'know' in which orientation the spin will be measured.
Because the local measurement will always be random, there is no way to communicate using spooky action at a distance, and SR communication speed limits are preserved.