They are, so to speak, “perhaps fixed to.” This is, of course, a practical commercial solution to the problem. However, from a legal point of view, the uncertainty inherent in these agreements can highlight considerable problems if the agreement is ever implemented. Fortunately, the courts have provided guidance for these agreements to remain applicable. The main element is the indication – that users can find the agreements and have the ability to check them. This is the most fundamental form of the agreement: the parties do not have a binding contract, but agree to continue their negotiations in order to reach a future unspecated agreement that will form the basis of their contract.