LogikCull - Logikcull is a discovery automation platform that helps expedite and lower the cost of litigations & investigations.
HTTrack - HTTrack is a free (GPL, libre/free software) and easy-to-use offline browser utility.
Discovery Assistant - Discovery Assistant is designed specifically for litigation support professionals to capture, search, and process electronic documents.
WebCopy - Cyotek WebCopy is a free tool for copying full or partial websites locally onto your harddisk for offline viewing.
Exterro - Exterro offer eDiscovery and legal software solutions.
SiteSucker - SiteSucker is a Macintosh application that automatically downloads Web sites from the Internet.