Timezone.io - Keep track where and when your team is.
Wayback Machine - Browse through over 150 billion web pages archived from 1996 to a few months ago.
Timezone Butler - Slack butler who will take care of the timezone differences
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
Spacetime - Work hour and time zone management for distributed teams.
FreezePage - FreezePage is a free service for taking online snapshots of web pages.