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So you’ve probably already read about the comScore data published yesterday suggesting Google’s paid clicks are no longer growing as fast as they once were. The measurement firm believes paid clicks in October were up 37 percent over the year ago period, a distinguished growth rate, but that they fell precipitously from there.

It estimates they grew 27 percent in November, 12 percent in December, and were flat in January. Further, its said the volume of clicks actually declined sequentially last month, from December to January. Sequential data is less valid than year-over-year, especially between Q4 and Q1, but this is still worth noting since we’re talking about the heretofore-invincible Big G. Google’s Declining Click Volume: Theories [ClickZ Internet Marketing Solutions for Marketers]