When designing skyscraper banners (160×600 and 130×160…etc.) try incorporating your logo in to the top and bottom portions of your banner layouts.
If you only want to include one logo, try positioning the logo in the top or middle portions of the banner.
If you only include your brand identity at the bottom, it’s will most likely fall below the fold (below the initial browser window area) and out of view of the user. Having a logo atop of the banner insures the viewer will be able to identity the brand associated with the message and call to actions.