Today Google announced a slick update to its ad Preview Tool. Included is the ability to see integrated keyword diagnosis results. So, an advertiser can select a keyword or phrase and check where and in what ad groups the ads are appearing, or not appearing. From the AdWords blog:

"In addition to displaying the ads for that search, the Preview Tool now specifically confirms whether your ad is showing and links to the relevant campaign and ad group. If your ad isn’t showing, the Preview Tool will tell you why, helping you understand if you need to adjust your bids, location targeting, daily budget, or optimize your account.

Using the new Device setting, you can also view and diagnose your ads for high-end mobile devices. You can even choose the specific device and carrier you’re interested in, so you can check ad visibility on multiple devices without borrowing all of your friends’ phones!"

In addition, you can confirm distances - so, how far is a mobile user from your store's location when a mobile ad is triggered?

Visit www.google.com/adpreview to get started.