Ged wrote: >>> How to avoid multiple logins? >>> >>> The short answer is: you can't. > > Sure you can. Charge $10 per login.
I don't want to clobber the list with non-technical trivia, but even when you charge money, you can't avoid it. If only there is one user that is willing to pay the amount twice, your scheme is broken. As with technical solutions: the higher the amount you charge, the lesser the risk of people doing it. But the risk remains... --Frank