The usap.gov website
The nasa.gov home page in 2015
Server-side programming language usage in 2016.

Industries that use this model include mail order book sales clubs and music sales clubs, private web mail providers, cable television, satellite television providers with pay television channels, providers with digital catalogs with downloadable music or eBooks, satellite radio, telephone companies, mobile network operators, internet providers, software publishers, websites (e.g., blogging websites), business solutions providers, financial services firms, health clubs, lawn mowing and snowplowing services, pharmaceuticals, renting an apartment, property taxes, as well as the traditional newspapers, magazines, and academic journals.

- Subscription business model

Some websites require user registration or subscription to access content.

- Website
The usap.gov website

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