Navigation LinksThe first and most obvious type of internal link to make note of is a navigation link or universal link. Category LinksThe second type of internal link is called a category link. Internal Link ModulesInternal link modules are another type of link that only the smartest companies are using. For the full list of benefits of internal linking, head over to 7 Benefits of Internal Linking in SEO. Organize Your Internal Links into a Web Graph StructureIn theory, building internal links is so easy.