Nobody likes getting lost. At Hyland Hills Water World that sinking feeling may be a thing of the past. The 65-acre theme park near Denver, Colo., recently implemented a new system that lets parents and kids locate each other through watchlike devices that transmit their positions anywhere in the park. The device, made by a company called ParkWatch, emits a low-power signal to 14 antennas stationed throughout the park; Sally’s location is beamed to special kiosks where Mom can track her on a screen. You can’t buy peace of mind, but here you can rent it–for $3 a day.

Why use boring old cash when you can pay off debts using Internet money? If both parties have Web access, you can move funds from person to person in a variety of new ways. Especially useful for completing auction purchases.

HOW IT WORKS

PayPal.com: Debits your credit card and sends recipients an e-mail that says, ‘You’ve got cash!’ They receive a paper check or direct deposit.

ProPay.com Allows individuals to accept credit-card payments as bona fide merchants. The receiver pays the fee: 35 cents plus 3.5 percent of transaction.

payMe.com : Similar to PayPal, though not as elegant or versatile. No limit on the amount of cash you transfer except for $500 per person per e-mail.

PROS

PayPal.com: Simple, free, fast. Integrated with eBay and Palm devices.

ProPay.com: Offers the fraud protections that come with credit cards

payMe.com: Recipient does not need to reply to e-mail to get cash

CONS

PayPal.com: $2,000 limit on credit-card debits over six-month period

ProPay.com: The fee

payMe.com: Long wait time for payments. Show us the money!