The easiest way to log in is by clicking on the 'Log in' link at the upper-right side of the page at http://voog.com.
You will have to provide your e-mail and password that you have signed up with and after a successful log-in, you will be directed to your Voog website in the edit-mode.
Alternatively, you may also add '/admin' to your websites address and you'll be directed to the log-in window (eg. yourdoimain.com/admin or mysite.voog.com/admin).
In case you wanted to log into another website that you have also registered with the same e-mail address, simply go to the Dashboard.
You should see all the sites tied to this email address and access your site of choice by clicking on one of them.