You’ll need a Coinbase account if you don’t have one. A way to get ethereum. And you’ll need a wallet to store it in that talks to the website. MetaMask is the best and acts as a plug-in to your browser (Chrome or Firefox).

When you setup the wallet make sure you write down the 12 word pass phrase and keep it forever :) even if your computer died, having that phrase would give you access.

Here’s the Foundation walk through on Minting (or creating) a NFT.
https://help.foundation.app/en/articles/4742869-a-complete-guide-to-minting-an-nft

If you don’t have a Foundation invite, another place to mint NFTs is Zora - Zora.Co - it’s open source and you can specify your own percentage of resell. (Here’s the Zora FAQs)

NFTs are a way to connect an image, movie, poem, song, etc. to a ledger- which creates provable ownership. You can authenticate the item. It’s a connected provenance. I imagine artists using it one day... like having a RFID chip on the frame of a painting that just pulls up the NFT info. Right now it’s all Ethereum based. Ethereum has the ability to add code or imagery to itself.

Okay maybe you know this stuff but, when you make a transaction or change within ethereum, it costs a fee that’s paid to the computers that authenticate it. That’s called “gas” - so it costs gas to “mint” the piece and to “list” the piece on the site.

That’s a ton of info. Lol sorry. But it’s a good primer!

On Foundation, If you sell, let’s say an image... and if your work picks up value and then people resell it. You’ll automatically get 10% of any resell. It’ll go into your wallet. It’s baked in.
How do you get invites on your own? If one of your NFT’s sells, Foundation automatically gives you invites.
How do I get noticed? I’m not sure. This is so new, we’re all trying to figure it out. What I will say is that Twitter is the standard for pushing these. Nobody seems to care on Instagram. It’s a super positive community on Twitter. You’ll find many artists posting and commenting on each other’s work and you’ll also find a ton of collectors.