What works for those sites may or may not work for you. The only way to truly know is to do a test. And besides, its well known that Amazon, Google and Yahoo all do their own site testing, so what you "see" as their current site may in fact be a UI variation that isn't really their best performing look. So go ahead and consider these sites your "best practices" - and copy all you like - just be aware of the flaws in this approach. Site operators that stand to earn [mb]illions of $ from their websites, and where a change in conversion rate of even just a few percent means considerable money gained (or lost). That's who. LC
Does anyone have the TRIZ ad rating system available? I.e. the subjective method for rating an ad (1 to 5) for a bunch of different characteristics (such as humor)? I can't find it online anywhere.