Whois & Analysis for substack.com

Electronic mail, or email, is a method of exchanging digital messages between people using digital devices such as computers and mobile phones.

Email first entered substantial use in the 1960s and by the mid-1970s had taken the form now recognized as email.

Email operates across computer networks, which today is primarily the Internet.

Some early email systems required the author and the recipient to both be online at the same time, in common with instant messaging.

Today's email systems are based on a store-and-forward model.

Email servers accept, forward, deliver, and store messages.

Neither the users nor their computers are required to be online simultaneously; they need to connect only briefly, typically to a mail server or a webmail interface, for as long as it takes to send or receive messages.

Writing is a medium of human communication that represents language and emotion through the inscription or recording of signs and symbols.

In most languages, writing is a complement to speech or spoken language.

Writing is not a language but a form of technology that developed as tools developed with human society.

Within a language system, writing relies on many of the same structures as speech, such as vocabulary, grammar and semantics, with the added dependency of a system of signs or symbols.

The result of writing is generally called text, and the recipient of text is called a reader.

Motivations for writing include publication, storytelling, correspondence and diary.

Writing has been instrumental in keeping history, maintaining culture, dissemination of knowledge through the media and the formation of legal systems.

A newsletter is a regularly distributed publication that is generally about one main topic of interest to its subscribers.

Newspapers and leaflets are types of newsletters.

For example, newsletters are distributed at schools to inform parents about things that happen in that school.

The subscription business model is a business model where a customer must pay a subscription price to have access to the product/service.

The model was pioneered by magazines and newspapers, but is now used by many businesses and websites.

Money is any item or verifiable record that is generally accepted as payment for goods and services and repayment of debts in a particular country or socio-economic context, or is easily converted to such a form.

The main functions of money are distinguished as: a medium of exchange; a unit of account; a store of value; and, sometimes, a standard of deferred payment.

Any item or verifiable record that fulfills these functions can be considered as money.