Including logo and web site URL in banners
If your ad campaign is a brand building exercise, it is advisable to include BOTH the logo and the web site address in the banner. For other types of banners, you might like to include the two, but make sure that they don’t dilute the banner punch line or the copy. In such cases, it’s best to keep the logo and the URL together either on the right or the left side of the banner. The logo should be made small and the URL can be displayed in a very small font size.