Sales will reach US$18.9 billion by 2010, the company said Monday, up from US$9.3 billion at the end of 2004.
Leading the surge will be search engine marketing, which is expected to increase at a compound annual growth rate of 12 percent, the research company said.
Sales of display ads, meanwhile, will increase at a compound annual growth rate of 7 percent, the market researcher said.
Classified advertising is also poised to grow, according to Jupiter. That sector is expected to have a compound annual growth rate of 10 percent, with revenue of US$4.1 billion in 2010.
Advertisers will be capitalising on the growing number of broadband-connected homes by spending on rich-media and streaming-media ads, Jupiter said. Rich-media spending will rise at a 25 percent compound annual growth rate to US$3.5 billion, the company said, while streaming-media revenue will rise at a 30 percent compound annual growth rate to US$943 million.
Also adding to Web publishers' revenue will be direct sales and network revenue-sharing deals.
"Publishers are in a good position right now," David Card, a research director with Jupiter, said in a statement. "Not only can they monetise their nonpremium inventory, but they can strategically choose the network providers they feel can generate the most yield from that inventory."
Other research has also pointed to strong online-advertising revenue. In the first quarter of 2005, Web ad sales climbed to US$2.8 billion, a 26 percent boost from same period in 2004, according to an earlier report from Interactive Advertising Bureau and PricewaterhouseCoopers.
Further, Forrester Research predicted recently that online advertising would jump to US$14.7 billion in 2005 -- which would be an increase of 23 percent over 2004.
