Hello webmasters!

With the launch of Google Instant Previews ( http://googleblog.blogspot.com/2010/11/beyond-instant-results-instant-previews.html and http://googlewebmastercentral.blogspot.com/2010/11/instant-previews.html ) we've moved the preview images from being in the options menu (as reported in http://googlesystem.blogspot.com/2009/11/preview-googles-search-results.html ) to a more prominent position in the search results. 

To help fine-tune the preview generation, it would be useful to have URLs of pages where the images are either not appearing, or incorrect in some form. If you see suboptimal, missing or broken preview images for your websites, we would appreciate your posting the URLs here so that we can take a look. The most common issue that we've seen so far comes from blocking parts of your website from being crawled. 

With Webmaster Tools, it's possible to check a few things in that regard:

While we are not able to respond to every posting directly, we will try to respond here should we determine that something in your control is causing this problem. 

Thanks for your feedback!

John

PS We've also put together a FAQ page for more information about Instant previews at https://sites.google.com/site/webmasterhelpforum/en/faq-instant-previews -- we'll be expanding this over time as we hear more feedback from you!