A method for message translation and a Messaging Translation Service Application Server (MTS AS) are provided for translating messages exchanged with, and among, social network services alike Facebook™ and Tweeter™. According to the invention, a message written in a first language by a user is received by a first social media network, which further obtains from other social media network(s) information related to a language used by therein. Then, the first social media network requests translation of the message from the first language into the language used by the other social network systems, and further sends the translated message to the other social network systems.