"Flash cookies are pure deep evil and in use every single day." LSOs in Flash are not strictly cookies. It so happens that many advertisers like to use them th

"Flash cookies are pure deep evil and in use every single day." LSOs in Flash are not strictly cookies. It so happens that many advertisers like to use them that way, but the usefulness for tracking across multiple websites can be easily curtailed by disabling 3rd party LSOs (so only swfs served from the website you're visiting can have access to LSOs). LSOs allow flash games to auto-save and let you pick up where you left off later. We use them to make the site faster for returning users and diminish load on our servers by storing certain information a user is likely to request on return visits in the LSOs.