The community maintained guide for your reMarkable tablet.
This guide will:
Show you access to your device
Show you how to install software on your device
Show you how to configure your device
Provide more in depth technical guides for your device
Give you tips and tricks for using your device
Provide information on developing software for your device
Answer Frequently Asked Questions
Official support site
Old reMarkable Community Wiki
Toltec - The community maintained software repository.
Awesome reMarkable - A curated list of projects related to the reMarkable tablet.
rmkit - A site about remarkable application development.