Google Payment API - Enable an easy-to-use checkout experience for customers

Screenr - A curated community of the best video freelancers

Giftbit Payment API - Stripe for gift cards

Work Notes - Articles, community and guides for freelancers.

Stripe - Online payment processing for internet businesses. Stripe is a suite of payment APIs that powers commerce for online businesses of all sizes. Use Stripe’s payment platform to accept and process payments online for easy-to-use commerce solutions.

Stop Thinking Like A Freelancer - Stop thinking like a freelancer