perlmonks.org desktop java client. Supports downloading of "nodes" (user owned information) to search, view and generally browse in a threaded manner. Also includes the chat client to interact with perlmonks.org.
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.