As we continue our SEO for Wordpress website series, we arrive at site structure. Once you have the basic structure of your web site in place, you can implement several additional advanced structural considerations to optimize your site for search engine purposes. For example, beyond setting up your web site so it is indexed, you may want to instruct search engines not to index certain pages. A robots.txt file allows you to tell search engine spiders what they may and may not do when arriving...