Check this first! The most popular questions and solutions to current issues.
About accounts, wallets, and understanding Polkadot
How to contribute to the Polkadot network with your stake and get rewarded for it
How to participate in crowdloans through polkadot.js
Common error messages, what they mean, and how to solve them.
Where to find us on Social Media and how to get more involved as a Polkadot Ambassador
Tips and tricks and other things that are good to know
These articles apply to DOT allocation token holders on Ethereum that haven't claimed yet after Polkadot became live