Search engine keyword prices increased from $1.37 to $1.44 between September 2004 and September 2005

Since September 2004 search engine keyword prices have increased on average from $1.37 to $1.44, Fathom Online reports. When the simple averages are weighted to remove the effects of the disparate price ranges, the weighted average increase is 19%. In the Consumer Services category which includes education, fitness and entertainment, keyword costs increased 78% and the Finance Investment category dropped 17%.