Google Webmaster Tools includes a tool called content analysis that you find in the Diagnostics section. The content analysis tool reported a suboptimal number of duplicate title tags and meta descriptions for some Drupal sites that I monitor with these tools.

Getting rid of duplicate title tags and meta descriptions caused by the pager is actually quite simple. When using the Meta Tags module with the setting ALL=INDEX,FOLLOW for Default robots meta tag: you can adjust the robots Meta tag in your theme, so that pages that contain the page parameter in the URL are not indexed using the following code snippet in the head section of your page.tpl.php template file.

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