MyBrocard - Brocard allows you to create an unlimited number of virtual cards for paying for advertising and other online payments, manage a team of buyers, choose from 20+ bins for various tasks, and enjoy convenient API for integrations.
#buildinpublic - Discover what people are building in public
Coinramp - The Coinramp Card lets you spend over 10+ cryptocurrencies like cash, online, in-stores and ATM withdrawals. Available in 100+ countries, no ID needed. Anonymous Crypto Cards
Open Makers - Open Makers is a community for those of you who are "building in public" and want to share your maker journey.
PST.NET - Virtual payment cards for online shopping and advertising
Astramind for Makers - Astramind is a platform where makers build in public and engage with potential customers, fellow makers.