Google announced a new feature for the AdSense ad review center, which lets you check landing pages for ads from within your account. This builds on a recent announcement, which let you search for ads by images.
"If you're looking for more insight into your users' experience with the ads on your site, the landing page view offers you a quick and easy view of what users see when clicking on an ad," explains AdSense software engineer Pedro Diaz. "This in turn will help you make a more informed decision about whether or not an ad is suitable for your audience."
You can find the feature when you log in to your AdSense account, and go to the "Allow and block ads" tab. Hover over ads, and you'll see a small magnifying glass in the corner, which will show you the landing page preview.
The feature is only available in accounts with English set as the language preference, though it will roll out to other languages in time.