The aim of this study is to offer a new perspective on both interpersonal communication andcomputer-mediated communication (CMC), by means of conducting a pragma-linguisticanalysis and comparison of a semi-threaded discussion forum and a fully threaded discussionforum; analysing features such as linguistic markers, dialogic listening, politeness, cooperation,elaborate or laconic greetings, farewell expressions and other conversational rituals. Aqualitative study was conducted, employing two methods of gathering data: (a) participantobservation and (b) document and material analysis. The major question for discussion in thisstudy is whether there are any differences with respect to linguistic and non-linguistic featuresbetween the semi-threaded and fully threaded forums? The study concludes that there aredifferences in linguistic and non-linguistic features between semi-threaded and fully threadedforums, but these differences are minimal and can more likely be attributed to the forum subjectmatter and social context than to the forum structure itself.