There is a logout right next to the "Hello,_____!" at the very top right hand side. If this doesn't work (as in, doesn't say you've been logged out) then you might want to clear your cookies. (usually in your internet tools) You might also want to check that you don't have the "log me in automatically" or what ever that click box is on the log in page...that it saves your password and keeps you in...because each time you go to the site it'll just log you in automatically.