# Test Mirror

**Published by:** [bporn.eth](https://paragraph.com/@bporn/)
**Published on:** 2022-05-06
**URL:** https://paragraph.com/@bporn/test-mirror

## Content

Marketplaces allow users to find buyers and sellers of NFTs via order books and simple sale or auction mechanisms. They can be generalized (Opensea , Rarible ) or specialized (e.g. SuperRare for art, Catalog for music, Parcel for virtual land).

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