Highest PPC click costs reach US$100
Of course, the search engines themselves will know this data but keep the information confidential, and it's not clear how the figures revealed by AdGooroo are obtained, other than by estimates and market feedback. It seems that the term 'mesothelioma' has become highly expensive due to legal firms pursuing new lawsuits related to the asbestos-causing lung cancer.
The report also says that the search engines served up on average between five and six ads per keyword during September. In the US market, Google moved to 5.45 adverts in September 2009, up from 3.06 a year before. Yahoo! dropped to 5.35 from 7.53 and Bing also saw a decrease to 3.10, from 5.12.