We will soon be listed on various exchanges.

For now, you can trade from person to person (using escrow) by going to our discord channel: https://discord.gg/Ef7x2qA

I think price estimations are around 500-1000 satoshi per ZETTEL, considering our advanced POW-technology, limited total coin supply (only 30 Million in 100 years) and community size.

But that's just my guess...