What is a hosting charge?

In the context of websites a hosting charge is a fee charged by a company for storing the files / pages of your website and uploading them to the internet. Fees range from just $1 per month - see here for an example bit.ly/1tOih1o and some companies such as google provide hosting via their "Sites" Tool for free. You can have a website with Wordpress and others for free, in return for them placing adds on your site