I am using a template which in the pages it allows me to add sidebars / more content under and above the content I want to pull from a category which is very helpful. If I create pages to display my categories content wont the page urls go in conflict with the category urls? By conflict I mean causing a duplicate content error? What I thought might help was to block from robots.txt the category urls of the blog ex. /category/books /category/music Would that be a good practice in order to avoid the duplicate content penalty? Any tips appreciated.