https://stone.freakhouse.dev/ - CMC have added "block explorer 2", also submitted to Coingecko etc. https://coinmarketcap.com/currencies/stonecoin/

Alternative to Discord to the "official discord" - https://discord.gg/2hkwzWn

The Telegram channel is open, but doesn't allow people to write to each other. Hopefully that will open up soon? Community building is as important as developer updates.

https://crex24.com/exchange/STONE-BTC