Sign Up for Free Trials With a Virtual Credit Card

https://twocents.lifehacker.com/sign-up-for-free-trials-with-a-virtual-credit-card-1826954873

What’s the Difference Between a Credit Card and a Charge Card?

https://www.fool.com/credit-cards/2018/07/21/whats-the-difference-between-a-credit-card-and-a-c.aspx

This Week In Credit Card News: Debit Card Usage Plummeting; Some Citi Cardholders Getting A Refund

https://www.forbes.com/sites/billhardekopf/2018/07/06/this-week-in-credit-card-news-debit-card-usage-plummeting-some-citi-cardholders-getting-a-refund/#19722e726930

Supreme Court Sides With American Express on Merchant Fees

https://www.nytimes.com/2018/06/25/us/politics/supreme-court-american-express-fees.html