Quadrille - 8:07 pm on Feb 27, 2007 (gmt 0)

It's certainly worth setting up multiple channels, so you can see which ads work - I've found on one site that virtually all the clicks come on the left hand tower, virtually none on the top banner - so I've been able to remove the banner, making a slightly 'cleaner' page, with no noticeable drop in income.

That result surprised me, but whichever it is, I hope to lose at least one block / link unit per page (on pages where I have 2 or 3).

Like many, I worked on the premise that more earns more - but that ain't necessarily so, and for many visitors, fewer ads is a definite plus, with links and conversions possibly more likely.