ATLANTIC CITY, N.J. (AP) - Internet gambling is slowly growing - but not expanding - after 2 1/2 years of online betting in the United States.

ATLANTIC CITY, N.J. (AP) Internet gambling is slowly growing but not expanding after 2 1/2 years of online betting in the United States.

Online gambling revenue is increasing in at least two of the three states that currently offer it New Jersey and Delaware; Nevada doesn't report Internet revenue separately.

But a hoped-for wave of expansion to other states has not happened as many states sit on the sidelines and assess the costs and benefits of the nascent industry.

It faces threats from politicians pushing a nationwide ban on Internet betting, as well as continuing hesitance from some credit cards to fund online gambling transactions.

The San Francisco-based Gambling Compliance organization predicts either California or Pennsylvania will approve Internet gambling next year, followed by New York and Mississippi in subsequent years.