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.

Fast.com - Quickly test your internet speed with this fast-loading speed test powered by Netflix.

Solo - Personal kanban boards hosted on your own server

SpeedOf.Me - SpeedOf.Me is an HTML5 Internet speed test. No Flash or Java needed!

Cash App - The easy way to send, spend, bank, and invest.

LibreSpeed - Self-hosted Speedtest for HTML5. Easy setup, examples, configurable, mobile friendly.