Blox is a Web suite designed to allow webmasters to focus on developing content instead of the site. What makes Blox unique is that adding a feature (say, a message board) is as simple as dropping a folder onto the server.
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.