Despite recent talk of broadband adoption slowdown, the number of broadband subscribers in the U.S. is set to double in the next five years, according to Leichtman Research Group (LRG) president and principal analyst Bruce Leichtman, writes ClickZ. "LRG forecasts that by the end of the year 2010, there will be over 105 million residential online subscribers in the US - with over 80 percent subscribing to broadband," according to LRG. An earlier report by LRG said cable operators supplied 25.8 million broadband subscribers, and DSL serviced 20.2 million, together accounting for 94 percent of the market.

Some 40 percent of current narrowband, or dialup, subscribers say they want to upgrade to broadband, according to LRG. Some 69 percent of all U.S. households now subscribe to an online service at home, and high-speed internet services now account for about 60 percent of all online subscribers.

Thirty-seven percent of all households with annual household incomes over $75,000 subscribe to cable broadband and 27 percent subscribe to DSL. Among all households earning $30,000-$75,000 per year, 21 percent subscribe to DSL and 18 percent to cable.

The mean annual household income of cable broadband subscribers is 12 percent higher than their DSL counterparts. The mean income of broadband subscribers is 35 percent greater than narrowband/dial-up subscribers.