Best way to keep a blog on a static website?

I have a friend who wants to pay me to start and maintain a blog on his website to get some more traffic from long tail keywords. His website is static. Is there any way to create a blog without having to switch his website to WordPress or another dynamic website? Is it stupid to just create a new page on his site for every new blog post? Should I just all put it on the same page?

See original post by mqs1000