An e-car is similar to a postcard or greeting card, with the primary difference being it is created using digital media instead of paper or other traditional materials. E-cards are made available by publishers usually on various Internet sites, where they can be sent to a recipient, usually via e-mail. It also considered more environment friendly compared to traditional paper cards. E-card businesses are considered environmentally friendly because their carbon footprint is generally much lower compared to paper card companies and because paper is not used in the end product.