One Word Domains - Database of all available one-word domains
Paper.xyz - Paper provides commerce infrastructure for selling NFTs.
Tool.Domains - Search free to register expired domains
GiveWell - GiveWell is a nonprofit dedicated to finding outstanding giving opportunities and publishing the full details of our analysis to help donors decide where to give.
Handshake.org - Decentralized certificate authority and naming
Accept Crypto - Find out if a company or website accepts Cryptocurrency.