If you dont want a column - and just want to ramble or cross post between your active blog site (minn 250 words before linking please)
EVERY SINGLE Member can have a blog. And YOU CHOOSE whether its PUBLIC (viewable to all whether logged in or not), Registered users only (viewable only if logged in) , Or Private (guess you cant make up your mind or haven't finished). Youc an also choose to enable comments or not.
There you go. Your Captive audience awaits...
Simply look for the "Add a New Post" link below the Port Blogs Link (only viable/editable when logged in)