Providing user access to global computer networks, in particular global computer networks for networking with ion-mobility spectrometers, Fourier-transform infrared spectrometers, optical detectors, enzyme-linked immunosorbent assay detectors (ELISA detectors), mass spectrometers, radiation dosimeters, gamma-ray spectrometers, radiation meters, electrochemical cells and smoke detectors; providing an online forum, in particular a technology forum for exchanging experience about ion-mobility sp...