I'm developing an article site where an user can register and post the articles and the URL would be like http://domain.com/articles/category-name/article-name
The site will also be having a blog under http://domain.com/blog/ And the blog section will only be accessed by site owners and not by any registered users.
I want the blog URL to be like http://domain.com/blog/post-name and not to be like http://domain.com/articles...
So should I go for a separate WP Installation or enable Multisite for this URL structure ?
Any other better options/ideas are always welcome. I don't want to do an installation on a subdomain like blog.domain.com
Thanks in advance.