The talk recordings are archived here.
Links to websites mentioned:
How to explain Cryptoart to your mother-in-law
The first step to be able to do things in the blockchain is to create your own address, which is called a wallet.
Step by step instructions video to create a wallet with Metamask:
Markets for selling and creating cryptoart
SuperRare is one of the first cryptoart platforms and currently the one with largest sales volume. Their artists release only one signed edition for each artwork.
OpenSea is a big market gathering all kinds of blockchain art and games: