A method, system, and computer program product for improving interactive online collaboration using user-defined sensory notification or user-defined wakeups in online collaborative operating environments. The fact is utilized that the flow of the medium, e. The aqueous polyacrylate modified polyurethane dispersion has self-crosslinkability when an unsaturated acetoacetoxy compound is used for the preparation of the polyacrylate emulsion. An indication of a content to be provided via the channel may be received from the channel manager for the channel. The present invention additionally relates to novel, organically modified wet gels, to a process for producing them, and to their use. Each XLRTRS combination jack is connected to a Mic in channel and to a Line in channel.