Does anyone know what they actually are?
The two main questions I'd like to know the answers of are how many you're allowed to make in a season and how many you're allowed at one time?
So far we've had plenty. From the top of my head:
Wayne Quinn, Niclas Alexandersson, Robbie Stockdale, Rami Shabaan, Jon Harley, Neil Mellor, Hayden Mullins (now permanent signing), Matthew Kilgallon and there is confusion over whether Melville is a loanee or permanent signing. I'm sure I've missed a couple as well...