Possible Duplicate:
Why would a web site hide the log out button?
Everyone knows Gmail. Its so easy to use. Of course. But just like Facebook wall, gmail inbox also almost hides the log out button. I dont ususally log out, as my access is always from my own devices. But once other day, i had to access my mail from my friends laptop and i wanted to log out from gmail and it gave me a worst time trying to find where the log out button is. I am really surprised that google would place the log out screen so much invisible. Is google forgetting the Visibility Heuristics here ? I am pretty sure, facebook forgot that a long time ago. What do you all think ? What is the real way to address this problem ?