Interland (formerly known as Interliant). Thanks to the Giancola's (with help from Lianna) for supplying this information!
Note: with Interland you can choose to have your web site on either a Windows-based server or a Unix-based server. Don't know which to choose? Perhpas this ice of information will help: most of the world's web servers are Unix-based.
If you wish to access your web site via FTP using your browser, enter:
ftp://userid:email@example.com/html (Unix-based server)
ftp://userid:firstname.lastname@example.org/www (Windows-based server)