How does the crawl find duplicate pages that don't exist on the site?

[Deniz]

It looks like I have a lot of duplicate pages which are essentially the same url with some extra ? parameters added eg:

http://www.merlin.org.uk/10-facts-about-malnutrition

http://www.merlin.org.uk/10-facts-about-malnutrition?page=1

http://www.merlin.org.uk/10-facts-about-malnutrition?page=2

These extra 2 pages (and there's loads of pages this happens to) are a mystery to me. Not sure why they exist as there's only 1 page.

Is this a massive issue? It's built on Drupal so I wonder if it auto generates these pages for some reason?

Any help MUCH appreciated. Thanks

[BenRWoodard]

This is being caused by your "Related Post" plugin/module. To correct this problem simply add rel="nofollow"  to the links in that module.

[Deniz]

Thanks Ben - much appreciated!