An electronic mailing list is a collection of email addresses which can get the same e-mail message at the same time. If an email message is sent out to the primary address associated with the mailing list, for instance – email@example.com, it is re-sent automatically to all of the addresses that are added to that mailing list. This feature will enable you to contact electronic mailing list subscribers without effort, so you can send notifications or any other info on a periodic basis to all your customers. Based on the software application that is being used to administer the mailing list, addresses can be added manually by the list’s admin or users need to sign up, giving their categorical approval to get messages in the future. A mailing list will spare you lots of time and will enable you to keep in touch with your customers easily, which can rev up the popularity of your web site.