The XWHO Directory retires 11 May 2011 On 11 May, a new web based phonebook will take over from the 16 year old XWHO directory. It will provide access to basic contact information concerning people and services at CERN. A user-friendly interface allows searching for people or services by criteria such as first or last name, organizational unit and phone number.  All requests to the retired XWHO directory will be automatically redirected to the new phonebook until end of October 2011. However all users having hard coded links referring to XWHO are strongly encouraged to change them as soon as possible. More details about redirection can be found at the end of this article. As of 11 May, the new Phonebook will be accessible directly from the CERN Home page or via the URL http://phonebook.cern.ch/ Please note that the new versions of the phonebook will be released regularly after the initial production roll-out with one in June. More information about this new Phonebook is available in the Bulletin article at URL: http://cdsweb.cern.ch/journal/CERNBulletin/2011/19/News%20Articles/1348766?ln=en  (In English) or http://cdsweb.cern.ch/journal/CERNBulletin/2011/19/News%20Articles/1348766?ln=fr  (in French) Please address any requests for new features or the information about problems you may encounter directly to the CERN Service Desk at service-desk@cern.ch GS-AIS and IT-UDS