If you are generating revenue off your website or blog, chances are you serve banner ads and they are either updated manually by adding the images and URLs into the source codes or with the help of external ad-serving scripts like OpenX or OIO Publishers.

Google has a similar web service, call the Google Ad Manager. In a nutshell, it is a simple (and free) web service that helps you manage banner ads. It also comes with a pretty complete inventory report module. Ad Manager integrates with AdSense, therefore webmasters have the ability to serve AdSense ads if there’s no banner for any particular slot. Here’s a quick look into advantages of Google Ad Manager:

• Ad Targeting ability. You control who get to see the ads. Let it be geographical, browser or language specific.
• Efficient ad serving. No script installation is required. Everything (including the creatives) are hosted with Google. Not only it saves you space and bandwidths, you can also be rest-assured that banners will be delivered quickly.
• Multi-user supported. You can assign multiple salespersons to handle the sales part, and have everything documented/recorded nicely inside Google Ad Manager.
• Simple User Interface. And like any other Google web services, Ad Manager has simple and easy to understand interface.
• more..

Section targeting allows you to suggest sections of your text and HTML content that you'd like us to emphasize or downplay when matching ads to your site's content. By providing us with your suggestions, you can assist us in improving your ad targeting. We recommend that only those familiar with HTML attempt to implement section targeting.

To implement section targeting, you'll need to add a set of special HTML comment tags to your code. These tags will mark the beginning and end of whichever section(s) you'd like to emphasize or de-emphasize for ad targeting.

The HTML tags to emphasize a page section take the following format:

You can also designate sections you'd like to have ignored by adding a (weight=ignore) to the starting tag:

With these tags added to your HTML code, your final code may look like the following:

Section targeting

This is the text of your web page. Most of your content resides here.

You can use section targeting to make suggestions about as many sections of a page as you like. However, please be aware that we can't guarantee results, and that it may take up to 2 weeks before our crawlers take into account any changes you've made to your site.

In order to properly implement this feature, you'll need to include a significant amount of content within the section targeting tags. Including insufficient content may result in less relevant ads or PSAs. In addition, please keep in mind that this feature should only be used to emphasize significant sections of your site's relevant content. It is against our program policies to manipulate the ad targeting to result in ads that are not relevant to the content of your pages.