WebReporter is a tool to periodically check Web pages of interest and report changes in HTML format (e.g., to the start page of your browser) and/or by email (maybe via SMS gateway). It can also report almost anything via custom plugins.
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.