the blog will be about reviews about books. but people will be able to post their own reviews. do you know of any theme/template that makes this? thanks !
Just add a guest posting section on your blog, also you can just put a notice on your blog if they want to share interesting things and stuff related on your blog nice-- be sure to credit there names on that particular blog post.
Just use this plugin on any theme - http://wordpress.org/extend/plugins/fv-community-news/. You will find it too much easier for your users to post content in your site.