REST Friendly URLs Lest say you have an articles site, which have: Category: credit-card Sub Category: student Article Id: students-heed-parents-on-credit-card-advice The following two samples describes the difference between friendly URLs and Dirty URLs: Dirty URLs http://.../article/Article.aspx?categoryId=credit-card&subCategoryId=student&articleId=student-article http://.../Category.aspx?categoryId=credit-card http://.../SubCategory.aspx?categoryId=credit-card&subCategoryId=student...