I did a bit of this on my blog. I originally didn't intend to do a blog, but I wanted to document my way through a book tutorial I started and a blog page is actually the most efficient way to do this.
Within a blog you can post pictures, write out the steps and even keep tabs on how not to do something (when it turns out wrong).
It's also a really easy way for your family (and non- quilting friends) to keep up with the quilting process.