Good music with good lyrics results in a hit. Good website design with good copy also results in a hit, both with visitors and search engines. If you have a Content Management System ensure the copy you write is like an inverted pyramid, with the most important keywords (that your website was optimized for) going at the top. That's for the benefit of both search engines and your visitors as visitors skim website copy. At the same time, ensure the copy is interesting for your visitor. A professional looking website design that's easy for search engines and visitors to navigate coupled with well written and optimized copy translates into an effective website that will be a hit.