cgrantski - 3:46 pm on Jun 28, 2006 (gmt 0)

Regarding the number of conversions (absolute number, right? not a conversion rate?) I believe Google counts a conversion even if it happens in a different visit, AFTER the Google visit, even if the different visit was NOT through Google.

You'd have to set up WebTrends to capture the same kind of latent effects, and they'd both have to have the same latency period i.e. number of days before the ad no longer will get credit for a purchase. Also I think WebTrends will only give credit to a visitor's most recent campaign. Google on the other hand doesn't care or know about other campaigns that the visitor may have responded to since the Google Adwords visit.