This study seeks to explore the wide range of strategies that online users employ to express their linguistic support in computer-mediated-communication environments. Based on a purely semantic definition of the term support, this research puts forward a taxonomy containing several strategies by means of which support can be discursively transmitted in digital contexts. This taxonomy is thus applied to data collected from two prototypical communicative practices taking place online: a Facebook group and an Intimate Partner Violence (IPV) forum, which amounts to a total of 12,327 and 26,452 words respectively. Findings show the most salient realisations for expressing support in these two online settings, drawing on the implications the use of a particular sort of strategy may have with regard to the communicative practices under investigation.