Kid-safe Web sites and services are becoming a rather lucrative business, and a new service called KidZui wants in on the action.

According to BetaNews, KidZui is a browser aimed at children between the ages of 3 and 12. KidZui differentiates itself from other sites, such as Disney's Club Penguin and Ganz's Webkinz, because it's based on a whitelist of more than 500,000 Web sites deemed "child appropriate."

Ars Technica tested the service by downloading the free one-month trial. The browser is intuitive with lots of graphics and easy-to-use parental controls, reports the site. However, the service seems to be heavy handed with the advertising.

The Wall Street Journal reports that the service will run you $99.95 a year, or $9.95 a month. But right now, you can get it for $49.95 a year, or $4.95 a month.