Because information technology is such a big field, it's important to narrow your expertise. Small companies will sometimes hire one or two people to play multiple roles. Luckily, HTML is fairly easy to learn. Content masters, responsible for deciding what material is relevant to the site and how that information should be organized, need to know both HTML and dynamic HTML so that they have a basic understanding of Web-site systems. The training for graphic designers is more rigorous.
More technical types can aim for programming and database administrator jobs.
Then you may be more suited to be a Web project manager, responsible for coordinating the work of the Web-development team. Project managers need to know programs and languages including HTML, dynamic HTML, and JavaScript, but not as extensively as do programmers or database developers. Your best bet is to join a local Web-developers association and ask about recommended programs. George Washington University's School of Continuing Education also offers a certificate program in Web development. Students can choose specialties like Web editing, interactive media, and 3-D animation.