Did you know that we have an AdWords Glossary? It's a great resource for learning more about AdWords; so we're starting a new series here at Inside AdWords entitled (Ad)Word of the Day. Each post in the series will cover one term in the glossary and talk a little bit about it.

For our inaugural post, we'll start with ad variations:
Ad variations are multiple versions of an ad for a single product or service, all based on the same set of keywords. Variations are a good way to test many versions of the same message to see which works best with potential customers.
One advantage of using ad variations is that AdWords can automatically show the best performing ad. If you are not sure which message will work best with your potential customers, you can simply create multiple ads for an ad group. AdWords will automatically show the best performing ad more often over time.

We hope you've enjoyed the first part of our new series. If you have suggestions for words you'd like to see, we're always listening at inside-adwords@google.com.