Following is a list of links pointing to various Cardano related resources.

Official Cardano website

Yoroi and Daedalus, the official wallets

Follow links from official Cardano website

Cardano Foundation

IOHK the company behind Cardano:

Cardano white papers

Community forums

Community Discord channel

Cardano Official @ Telegram

Cardano stake pool best practices workgroup @ Telegram

IO SPO Announcements (newsletter)

Github code repositories

Cardano community produced FAQ

Blockchain and Pool explorers
…and many more

Why Cardano?

The original essay from 2017 outlining the background, philosophy and inspiration behind the Cardano blockchain. By Charles Hoskinson.