Polygon is a platform design to support infrastructure development and help Ethereum scale. Polygon rebranded from Matic Network in February 2021 and pivoted towards supporting multiple Layer-2 infrastructure.
native chain explorer:
Polygon is on Etherscan
Polygon on Coingecko
Polygon on Coinmarketcap
social networks: CRAB's POLYGON DISCORD LIBRARY
Polygon Technology
Set up Polygon Matic chain in your Metamask wallet.
Quickswap
AWESOME POLYGON - Index of Dapps