International audienceThe advent of the so-called Web 2.0 and the Semantic Web, for all their seemingly apparent (Floridi, 2009) differences, was instrumental in a renewed interest in questions that used to be addressed solely by the philosophy of language. Amongst these, the problem of meaning is paramount to many a Webservice. The fact that philosophical problematiques of such a magnitude as this one are brought up both in the design process and effective use of technical devices, forces us to realize that some topics are already moving from the traditional realm of theoretical questions to an area packed with innumerable “artefacts of meaning” - tagging systems among many (we will focus on these for the time being). This shift, that we’...