Google will be releasing a study this week about the effectiveness of banner ads. And the report says the average click-though rate for banners fell in 2010. Google?s report says one person out of every 1,000 that actually sees the banner ad clicks on it. The Google report found that the format of a display ad can make a difference. A 250?250 pixel ad using Flash got the highest CTR of any format ? 0.26%. The worst performers were vertical 120?240 banners with Flash and a full (468?60) banner with Flash, which both got rates of 0.05%.
