The big difference between a proper website, and a website on a blog
is that in the case of a proper website like JTF, it is properly designed, and the designer is often not the person writing the articles. And it is generally not updated that often. On the plus side, it looks good and leads to the forum..
In the case of a website on a blog, it does not look like a proper organisation, it looks like a one man job - blogs always are. And it has visitors reading the articles, and comments.. It's really a place to share your original articles.
You could start with a blog and progress to a proper website. But for constant updates, blogs are easier. The JTF site is not constantly updated.. It's one guy, sits there for 4 8 10 20 hours, designs it, and its up. And to a large extent, that's it.