This site was created with the aim of serving in learning a language. Especially we'll try to help listen it. It also comes with the goal of being free and collaborative. Therefore anyone who wants to participate is welcome.
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.