Аннотация:A limited review of the status of advanced gravitational wave interferometers is presented. In addition, a new opto-acoustical gravitational detector OGRAN in the deep underground of BNO INR RAS is described. The second part of the paper contains a short description of the ―multi-messenger astronomy‖ approach in the context of the GW detection. Various scenarios of such strategy proposed by different authors are discussed. Special attention is paid to the ―neutrino-gravity correlation‖ which looks more or less realistic in respect of supernova events in the Milky Way and near-by galaxies.