The state attorney general's office and the Iowa lottery are studying options and monitoring efforts to regulate the booming business. But Andrew Anderson, an assistant Iowa attorney general, said enforcement is a problem.

"Specifically, the person beaming it into your state doesn't live in your state most of the time. Oftentimes, they live in foreign countries or distant states and it is difficult to track them," he said.

There are about 20 $20,000 sites and many others are expected to come on-line.

cash official Jeff Terp, of Las Vegas, said he is concerned with Internet $20,000.

"We are in a highly regulated industry. We like that regulation. It gives us integrity and credibility," Terp said. "But with Internet $20,000, who is the controlling force? Secondly, because many sites are being set up offshore, we have no guarantee about the honesty of these people. And who knows who is running these deals?"