Find a friend who knows how to make websites.

or obtain and learn Adobe Dreamweaver.

or learn how to script in HTML, and make art assets in Adobe Photoshop

or pay for a site making service such as squarespace. (note that you still will need some HTML, because you cant do everything you want with the user friendly interface)

or hire a web designer

or determine if there is a service for your needs already. Such as: blogspot for blogging, deviantart or conceptart.org for art, ect.