The following sections provide guidelines you should consider as you design your ad feed.
Typically, ads appearing as banners are wide and short, while ads appearing within text are square. Googles Ad Manager also provides an option for specifying an ad size based on the size of the visitor’s browser window. If the browser window is small, you can request a small ad; if the browser window is large, you can request a large ad.
Determine where on a page you want ads to appear. Publishers place ads above each item, below each item, wrapped inside each item, or combinations of all three. See the illustration in Modules for examples of where you can place ads.
You can use a query string to block an ad feed. The key for the query string is
disableAds, and you can configure the value. For example, if you chose a value
567abcded, then the following URL blocks an ad feed.