# Test Mirror

By [bporn.eth](https://paragraph.com/@bporn) · 2022-05-06

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Marketplaces  allow users to find buyers and sellers of NFTs via order books and simple sale or auction mechanisms. They can be generalized ([Opensea](https://opensea.io/) , [Rarible](https://rarible.com/) ) or specialized (e.g. [SuperRare](https://superrare.co/)  for art, [Catalog](https://beta.catalog.works/)  for music, [Parcel](https://parcel.so/)  for virtual land).

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*Originally published on [bporn.eth](https://paragraph.com/@bporn/test-mirror)*