(also called e-cards) Greeting cards can also be sent electronically. Flash-based cards can be sent by email, and many sites such as Facebook enable users to send greetings. More recently, services have launched which enable users to send greetings to a mobile phone by text message or use mobile app for this purpose such cards are called Mobile E-cards or MCards. Many of these electronic services offer open or anonymous chat, to enable further discussion.
These are greeting cards for the budget conscious. There are two common formats for reusable cards. Firstly, there are cards with slits in them positioned to hold pages. Secondly, there are notepad style cards where pages stick to the back of the cards. The pages that have been used for reusable cards can be removed after being received and fresh pages can be used to reuse the cards.