We will do a subsequent post on the emerging platforms in the NFT art world. If you're itching to get exploring right away, here are some of the most popular NFT art marketplaces to get you going:
SuperRare — Highly-curated 1-of-1 edition NFTs. The "gold standard" in the current NFT space.
NiftyGateway — Fast-growing NFT market leading the pack in sales volume. Highly sought after daily NFT drops, with popular visual artists and now celebrities getting involved. One of the few NFT platforms that accept USD / credit card as payment.
Zora — Feed-style NFT platform in which the market of each piece is baked into the NFT itself and not run by the platform. Zora, therefore, doesn't take a transaction fee on each sale like the other platforms. Creating NFTs is open for everyone. The Zora protocol is also open for anyone to build on.
Foundation — Beautifully designed and curated NFT marketplace with reserved bidding that, once met, unlocks 24-hour auctions. Creating NFTs is currently invite-only.
Rarible — The most open and permissionless NFT marketplace. Anyone can create an NFT right away without needing an invite, and a roadmap is in place to make the platform community-run.
Makersplace — An invite-only creator NFT platform that accepts both Ethereum and fiat currency. Recently partnered with Christie's auction house to sell the first fully digital piece at Christie's, by artist Beeple.
KnownOrigin — Quality NFT art platform with multiple weekly drops. Offers accepted in ETH.