(https://s2.coinmarketcap.com/static/img/coins/64x64/2010.png)
Website: https://www.cardano.org/
Explorer: https://cardanoexplorer.com/
Explorer 2: https://seiza.com/home
Explorer 3: https://adascan.net/
Staking: https://staking.cardano.org/
Message Board: https://forum.cardano.org/
Telegram Chat: https://t.me/CardanoAnnouncements
Forum: https://forum.cardano.org/
Facebook: https://en-gb.facebook.com/CardanoFoundation/
Twitter: https://twitter.com/CardanoStiftung
Reddit: https://www.reddit.com/r/cardano/
Source Code: https://github.com/input-output-hk/cardano-sl/
Technical Documentation: https://www.cardano.org/en/academic-papers/
Wallet: https://www.cardano.org/en/the-daedalus-wallet/
Price:
https://coinmarketcap.com/currencies/cardano/
https://www.coingecko.com/en/coins/cardano
Cardano ADA stake pool data service platform: https://adapools.org/