US search marketing spend grew strongly during the third quarter of this year, according to a new study.

The findings from search management firm SearchIgnite indicate that expenditure in this area is up almost 27 percent in comparison to the same three-month period in 2007.

Commenting on the research, Roger Barnette, president of the company, states paid search spend continued to "hold strong", despite the economic climate.

"The strength of this ad market in today’s economy suggests that paid search continues to be a highly profitable and efficient digital marketing channel for brands," he continues.

Other findings from the study included the fact that Google has continued to increase its dominance in the search market, increasing to over 72 percent of search ad dollars.

Meanwhile, Yahoo! lost a slight proportion of its market share, but is up several points from the same period in 2007.

SearchIgnite’s findings follow the publication of data from TNS Media Intelligence, which found US internet display ad spend rose by a total of eight percent during the first six months of this year.