Ankhenaton - 4:04 pm on Nov 3, 2005 (gmt 0)

Should we get some structure to this comparison. Set a certain date range and then compare? Would it be against the TOS to put a line in there for clicks so long as no numbers are revealed?

Dunno about TOS, but a line doesn't tell you very much.

I think CTR vs PI might be useful. If its not a line with

y=ax and a=0 APPROXIMATELY and you can exclude timeseries influences [aka you fiddling with the ads changing colours etc] you might be able to draw conclusions.

CTR vs eCPM should be fairly linear in a regression [use the right fitting curve though ;)]

ecpm vs time is interesting. If the regression is showing less wiggels at the end, the G algorithm is working, imo. If it bounces about the algo can't find an optimal fit for your set etc. There is soooo much you can do with that data ...