busyteacher - 1:03 am on Jan 20, 2012 (gmt 0)

re: 'Given various screen resolutions, define "above the fold." Just saying.'
There is an Adsense tool for that:

Moving ads higher up on a page is a simple yet effective change that can have a big impact on your ad revenue. The area that's immediately visible when a page is loaded without scrolling down is known as "above the fold..."

[as-abovethefold.appspot.com...]