You pay people in India $2 per hour to do it for you. Maybe you've heard of Ticketmaster's lawsuit against RMG Technologies, a company that sold special software to scalpers to allow them to bypass Ticketmaster security, including the "captcha" visual barrier? Well, the President of RMG let it spill that they're simply paying people in India $2 per hour to enter the information.
It'll be interesting to see if this turns out to be fully true as RMG has had to turn over source code, but if it is, I wonder if Ticketmaster really has a case.
This will be interesting to watch.
Captcha picture from Gea-Suan Lin