The invention relates to an electronic system for implementing an optimized way to provide information from a first electronic device to a second portable electronic device, and to a method of implementing a virtual noticeboard. The context in the virtual noticeboard of the first electronic device is arranged to be transmitted to the second device located within a geographically limited coverage area of first radio means of the first device, and the second device comprises selecting means for selecting the reception of the virtual noticeboard of the first device. The contents of the noticeboard may only transmitted to those who enter with their devices the permanent coverage area of the noticeboard, such as an airport. The device implementing the noticeboard and the radio means transmitting its contents may be integrated into one device. The virtual noticeboard may be a global one.