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Hi, I'm relatively new to SEO but have tried to apply all best practices to my site. However, I've hit a stumbling block when it comes to whether or not to index my category pages. http://istudyenglishonline.com/category/expressions-idioms/ General info: the site has been created with Wordpress and has a directory of English idioms. Each idiom is associated with one or more categories that it falls under (emotions, sports, food etc). Each category has its own page where the list of idioms will be. As each idiom often has more than one associated category, the same idiom will appear in different category pages, thus creating duplicate content. However, I have given each category page its own unique description. The issue is, when there are numerous idioms, the category page will have more than 1 page. I don't have the ability to create a unique description for each subsequent page of the main category. I know that the very model for some vertical search engines (such as indeed.com) is to create such landing pages and that the more "categories" that they have assigned to their job ads, in this case, the more pages created and the more pages indexed in Google. This seems to work very well for them. My question is, am I doing things right? Should I be doing anything to the subsequent category pages to avoid duplicate content? My plan was to have so many idioms associated with so many categories that I have a fair number of landing pages indexed in google, thus attacking the long tail keywords. However, I'm not sure if I am going the right way. Any advice would be much appreciated!