Webhosting packages can be purchased from www.anakin.com.au and used to host your 7D website.
At the time of writing, hosting one domain name (unlimited subdomains can be created for free) costs $60 per year. (Up to) 5 domain names costs $72 per year. 18 domain names for $120 per year and unlimited domain names for $180 per year.
Clients can choose to host their website with other 7D clients for $20 per year.
If you have your own hosting elsewhere and it has all the required features, you can use it to host your 7D website for free.