Intellectual property attorneys are recommending that big companies and brands protect their names from .XXX use by blocking them before the new domain suffix begins being used by adult entertainment companies.

But there also is some question as to whether smaller non-adult businesses should pay $225 to protect their brands and trademarks from becoming home to cybersquatters or porn Web site operators, said Brian W. LaCorte, an intellectual property attorney with Ballard Spahr.

Mr. LaCorte said businesses that experience high Web traffic also should consider paying the money to avoid image headaches down the road in case a porn company decides to use their Web address for a .XXX address.