Post Message wihtout going thru Admin Page

Hi, how can i make a contributor to post a message without going thru the Admin/Write Page of wordpress. Is there anyway I can create a “Comment” type of form but this time it is a form to “Write a New Post”

I want to place it on the footer of the Main page just like this one: https://www.computing.net/security/wwwboard/wwwboard.html