WordPress will host your site for free when you use WordPress.com. That means they’ll store your content for you and “serve” it to web visitors. You don’t have to do anything except create your free blog, add some pages to turn it into a website, and start blogging! However, the features of WordPress.com are limited, and it is not recommended for a business blog where you need complete control and flexibility.
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Hosting Media – Hosting Industry Demystified
Web Hosting Media 