Some of these links will apply to both artists and collectors while others may be more geared towards one side of the community.
Tracking NFT platforms, token prices and more on Coin Market Cap
Tracking Blockchain Gaming & Collectibles on NonFungible.com
Dapp.com NFT Marketplaces
Coin Gecko NFT Token Tracking
CryptoSlam Tracking Collectibles
CryptoArt Pulse
NFT Mindmap Visualize the NFT Space
Reverse Image Search
Google Image Search
TinEye Reverse Image Search
Crypto Tax Guide by Coinbase (US Citzens)
How to Display NFTS