just by changing ad colors/format/positions.... do you believe it?
Below is the extract of the article:
"... a science website that was earning about $10 per day. They were using a 468x60 Banner at the bottom of their pages, but started experimenting with two 300 x 250 Medium Rectangles -- one placed just at the top of their content, and another placed directly under the main content on each page. They also tried using more blended colours. Things went crazy from there and earnings shot up to $700 per day. Finally, they moved one of the 300x250 Rectangles from the top of their page to a location more embedded in their content. After that, earnings went to over $1,700 per day! ..."
