Hi all,
I want to share useful links related to mining.

Forums

The most popular forum is https://bitcointalk.org
You can find a subforum dedicated to altcoins mining
https://bitcointalk.org/index.php?board=160.0

Profitability calculators

This sites allow you to calculate profitability by algorithm and mining hardware.
https://whattomine.com/
https://www.coincalculators.io/
https://www.coinwarz.com/cryptocurrency
http://www.mycryptobuddy.com/

Exchange

This exchange allow you to buy and sell cryptocurrency
https://www.coinbase.com
https://www.binance.com
https://www.kraken.com
https://poloniex.com

Miners

PhoenixMiner (Ethash)
https://bitcointalk.org/index.php?topic=2647654.0
Claymore's Dual Ethereum AMD+NVIDIA GPU Miner (Ethereum + Decred/Siacoin/Lbry/Pascal/Blake2s/Keccak)
https://bitcointalk.org/index.php?topic=1433925.0
Claymore's CryptoNote (CryptoNight)
https://bitcointalk.org/index.php?topic=638915.0
Claymore's ZCash AMD GPU
https://bitcointalk.org/index.php?topic=1670733.0

Tuning

OverdriveNTool - tool for AMD Hawaii, Fiji, Polaris, Vega GPUs
https://forums.guru3d.com/threads/overdriventool-tool-for-amd-gpus.416116/
MSI Afterburner
https://www.msi.com/page/afterburner

Mining Pools

NanoPool
https://nanopool.org/
EtheMine
https://www.ethermine.org/
Dwarfpool
https://dwarfpool.com/
Mining Pool Hub
https://miningpoolhub.com/

OS Mining

Hive OS
https://hiveos.farm/
SimpleMining OS
https://simplemining.net/
ethOS Mining OS
http://ethosdistro.com/