According to the analysis, Google Yahoo will take up of the U.S. search advertisement market

David, senior analyst at market research firm eMarketer, according to foreign media reports. David Hallerman predicts that Google and Yahoo will account for more than 90% of the paid search ad market in the United States this year.
According to the latest data released by Internet traffic analysis company comScore, Google and Yahoo accounted for January this year of the U.S. Internet search market in 75.8%. According to the latest data published by Nielsen Internet research, in January this year, Google and Yahoo accounted for 76.4% of the U.S. Internet search market. Halman predicts that over 2007 of paid search advertisement spending in the United States will flow into Google and Yahoo throughout 90%. "The high centralization of the paid search ad market will bring about a side effect, that is, some advertisers will find that advertising on the second-stream search engine is more cost-effective, because the price of keywords is relatively low, it can also cover a large number of consumers."
Paid search ads have been the largest share of the U.S. online ad market since 2003, and will account for 42.5% this year. In fact, paid search ads have become the main driving force for the development of the U.S. online advertising market. EMarketer predicts that the U.S. paid search advertisement spending will exceed $2008 in 9.6 billion, which is equivalent to the total output value of the U.S. online advertising market in 2004.
Haileman believes that there are many factors that will promote the growth of paid search advertising spending. According to the search engine marketing status quo published by SEMPO, 44% of search ad customers started advertising on search engines two years ago. With the full effect of search advertisements in marketing, these companies may increase their advertising budgets in the future. In addition, as advertisers increase their satisfaction with search ads, they will purchase more keywords, which leads to fierce competition and raise the keyword price. In the end, the search advertisement expense also increases ".