A study conducted by JupiterResearch for search engine marketing firm iProspect found that 88% of search marketers are now measuring ROI, up from 79% in 2005. The
Search Marketer Measurement & Performance Study, also found that 86% of search marketers tie
performance evaluation to search metrics, up from 81% two years ago,
The March study surveyed 794 search marketers who outsource the management of their search engine optimization campaigns
to an outside firm, as well as engage in paid search advertising.