There’s probably no one working in marketing or running a business that hasn’t heard of Google AdWords.

Many people know about the Display Network, but not everyone understands what it is. The Google Display Network shows ads on over two million websites. These ads can be text, images, Flash animations, or videos. The sites can be accessed on a desktop, tablet, or phone.

How Display Network fits into the AdWords business

AdWords were created to allow Google to make money out of searches. Initially they appeared on the side of the results before the layout changed and some of them started appearing above organic results.

Soon after AdWords matured, Google developed an affiliate model called AdSense, based on technology it acquired from another company. This was so-named because it was designed to use content relevance to decide which ads to display.

Any website could sign up as a Google affiliate through AdSense. Placing some code on the web page meant that, each time the affiliate’s page was loaded, the code would display ads suitable to the context of the page.

Google Display Network ad types

Nowadays, the network of AdSense affiliate sites is known as the Display Network. Essentially it offers a second option to your pay-per-click marketing strategy.

  • AdWords in search results – your ads appear based on the keywords you select and other parameters you choose.
  • Display Network – your ads appear based on content relevance and according to other filters you set.

As an advertiser, you pay for each click to Google. If one of your ads achieves a click on a Display Network affiliate site, a portion of your click fee is paid by Google to the affiliate site.

How AdSense created a massive SEO spam problem

Many people don’t know that the rise of spam in organic search results was mainly caused by AdSense. People found out there was a chance to make a lot of money by displaying AdWords ads on millions of pages. To do this, countless websites were made just to get high rankings in Google’s organic results.

Huge corporations such as Demand Media, owner of eHow, created successful business models where masses of content, with arguably low value, was created purely to attract traffic from search results. Algorithms were created to work out the most lucrative keywords with the highest commissions and the lowest organic competition.

It was this business model, and the millions of others trying to emulate it, that led to Google saying enough was enough. Algorithm filters like Penguin and Panda were designed to kill off poor quality content and spammy SEO practices – both of which were losing Google money and devaluing the quality of search results.

But Display Network is a good thing

As this infographic from AdWords shows, the Display Network is used by some of the biggest online brands in the world. Of the top 200 websites in the ComScore rankings, 65% serve Display Network ads.

The Network reaches 90% of internet users globally.

You can see the full infographic here.

How to plan a marketing strategy with Display Network

To understand more about the Network and the advert types, take a look at the official page.

On that site, you will find an explanation of advertising options as well as some case studies from other advertisers.