Do I need a domain to host a site with ImHosted.com?

A domain is not necessary to host your site with us. You can use what is called a sub-domain. If you use this method, your site can be accessed in the format http://yourname.imhosted.com/. You can replace the word "yourname" with anything you want. A domain looks much more professional for a business site, but is usually unnecessary (and is often a waste of money) for a personal site.