Archive.md - archive.is allows you to create a copy of a webpage that will always be up even if the original link is down

LogikCull - Logikcull is a discovery automation platform that helps expedite and lower the cost of litigations & investigations.

Wayback Machine - Browse through over 150 billion web pages archived from 1996 to a few months ago.

Nextpoint - Nextpoint offers solutions for eDiscovery, evidence exchange, deposition and transcript management.

Perma.cc - Perma.

Everlaw - Everlaw is an eDiscovery software for litigation, document review, and analysis.