Msg#: 4640805 posted 5:55 pm on Jan 28, 2014 (gmt 0)
Welcome to WebmasterWorld toopie28
There are so many different things which affect how a banner ad works, not least the site or service displaying the banner ad. Of course, there's the ad itself, and whatever the banner is advertising. Add to that the clicks and the landing page quality and performance, making a whole range of things that have an effect on the performance of a banner ad.
In simple terms, it depends upon what you're trying to achieve. Some banner ads are purely for corporate branding, and others are service or product related.
Does it work? It must be working to an extent or the industry would not spend so much money on it.