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.
Exterro - Exterro offer eDiscovery and legal software solutions.
Perma.cc - Perma.
Actiance - Actiance is a unified communications solution provider, offers a platform that helps you manage all social media channels.