Hai Friends,  The company where  I am working is having huge strength of employees Approx 15,000.  Since it is a secruity industry the  employees works in shift system and always faces high attrition. I request our members suggestion  that how to pass the information to all the employees without  much waste of time and money.  (Note The sending SMS is not possible due to heavy cost involvement and frequent change of  mobile numbers by the employees). Thanks. G Balasubramanian