Methanol is a scriptable multi-purpose web crawling system with an extensible configuration system and speed-optimized architectural design. Methabot is the web crawler of Methanol.
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.