Since backlinks are important part of modern SEO, Directory Inbox is aimed to provide webmasters with new, quality and search engine friendly directories, which are delivered straight to their inboxes.
Directory Inbox’s newsletter includes two major types of directories, which are free and paid directories. Each type contains only ten best directories, in order to save your time and improve your ranking as much as possible. Directory’s PR, PS, design, listings and reputation are the factors which determine its quality.
