Even as some marketers rein in spending to hedge against further economic problems, search engine marketing (SEM) is in great shape—at least for the moment. Search engine advertisers and agencies surveyed for the Search Engine Marketing Professional Organization (SEMPO)-sponsored "2007 State of the Market" survey listed multiple reasons for the SEM spending growth, including advertiser demand, rising keyword and pay-per-click campaign costs, small-to-midsized business SEM use and increased behavioral and demographic targeting. The study was conducted by Radar Research online using an IntelliSurvey panel.