21_blue - 12:12 pm on Jan 25, 2006 (gmt 0)

level80 wrote:

It's best to compare like with like - eg Jan 06 with Jan 05 if you want a fairer comparison.

That's a fair point, and another external factor that can articifically affect eCPM - it does seem to change 'seasonally' to some degree, in line with visitor patterns/habits/interests.