I recently posted a reply to Jon Curry here that addresses some subjects that some of you may be interested in. For example:
Was Papias a disciple of John?
Was Polycarp a disciple of the apostles?
Did Papias make reference to John's gospel in his writings?
Does anybody before Irenaeus attribute the fourth gospel to John?
Were the gospels possessed by the early Christians the same as the gospels we have today?