New numbers from Fathom from this Media Daily News article: Keyword Prices Tumble, reports that in November keyword prices fell 11% from $1.64 per click to $1.46 per click.
November marked the second consecutive month of year-to-year declines in average keyword cost. In October, the price fell to $1.45 a click–a 6 percent drop from $1.55 in October of 2004.
The article includes two charts that look at prices mont-over-month and year-over year for eight categories.
From the article:
Still, revenues from search advertising have increased this year, and there is no sign that this will change. For instance, Google’s third-quarter revenues reached $1.578 billion, marking a 96 percent increase from the third quarter of last year. Additionally, a new report by Piper Jaffray senior research analyst Safa Rashtchy predicts high single- to low double-digit price increases for search and branded ad inventory next year. (See “Ad Revenues To Reach $55B By 2010″).