As an AdSense sponsoring web site, your goal is to have contextually relevant ads displayed whenever a visitor comes to your site. That’s the goal, and it sounds simple enough, but sometimes it seems that Google is bent on not cooperating with you in the least.

If there are times when your web site is displaying apparently random ads which have no relevance to your site at all or worse, it’s displaying non-revenue Public Service Ads (PSA), then that’s a sign that you need to work harder to help Google make up its mind.

Google uses a pretty effective set of Artificial Intelligence (AI) tools to sniff the content on your site so it can serve up the most relevant ads out of its extensive inventory. However, since no humans are involved in this process, it’s actually pretty easy to lead the poor spider down the wrong path.

It’s not enough to simply depend upon your site’s keywords to pull the right ads from Google; you have to pay attention to the context in which the key words are used as well or you could get some surprises.

For example, suppose that you have some text on your page that reads “I love Guns ‘N Roses". There is a good chance that you will either end up with PSAs, because “Guns" is a known Google “stop" word that triggers PSAs, or ads from 1-800-Flowers thanks to the key word “Roses". But if you modify your content slightly to have it read something like “I love the heavy metal and hard rock bands like Guns ‘N Roses", then you should start pulling ads that match your site’s theme.

The words “heavy metal" and “hard rock" are called supporting keywords. Their job is to help define the context that the actual key word is being used in.

When the Google spiders are fed both supporting and actual key words they are better able to make the right decisions on your behalf.

The position of your key words also plays a part in pulling the right ads. Words that are closer to the top of the page have more “weight" than those that appear farther down. Tags are also important. < H1 > and < H 2 > tags have a higher precedence over < P > tags, and < B > tags are significant as well.

The key to getting the right ads to appear on your site is to fine-tune the supporting key words and tweak your tags until you are seeing what you want to see.

Once you reach that goal, you can read our article on Smart Ways to Attract Higher Paying AdSense Ads, and Tips for Maximizing Your Google AdSense Revenues for even better results.

Sometimes it seems that the Google spider is doing all it can to not get along with you. The next time you have that thought, stop to consider the possibility that the Google spider is having the same thoughts about you!