Now that you have the sub pages completely optimized and ready to do well within the SERPs it is time to start building links towards these sub pages
. This is actually a lot easier said than done because the majority of link building resources on the web only want the main index of a website and will not allow sub pages or domains. Focus on the resources out there that will let you build links to the sub pages. These resources include blogs, article directories, and social bookmarking. These three will be your best option if you want to start ranking your sub pages well within the SERPs. Usually it will take much less work to rank a sub page well within the SERPs because it will already be sucking some of the authority away from your index. Try to build several hundred links to each sub page this will ensure that your pages will not be dropped down deep within the serps and will also help spread page rank around your website.