A form of e-commerce by companies that sell news, documents, subscriptions, or any other content that can be delivered digitally over the Web. Under the ultimate "pay as you go" model, a d-commerce company acts as an electronic middleman: Users establish an account with a d-commerce company to purchase content from a variety publishers, which is easier because they give out their credit card number once instead of to a multitude of Web publishers. The d-commerce company, in turn, handles the billing, collection, refunds, and other payment processes for the publisher. D-commerce is considered a form of e-commerce because money is exchanged for a product or service that exists "electronically" (in this case, "digitally"). For more information, read the column "Digital Commerce," by Denise Caruso, in The New York Times.