I'm not a web programmer. I'll get that off of my chest right now. However, I have been working with CSS and XHTML for some time now and know a thing or two.

But what I don't know (and desperately need) is how to create a site where users can write directly to a file. The best example I can give of what I'm looking for is a blog commenting system. Is there any way to create a system like this using XHTML and server writing privilages? If not what would you recommend? Are there any examples of this type of thing on the web you know of?

Thanks ahead of time to those who take the time to look at this, and those who reply.