On the internet, people can connect with others and share news and experiences through social media such as internet forums, social networks, or blogs. An internet forum is a discussion group within an online service organisation where users with similar interests can exchange ideas, find valuable information, and share files. Users use a variety of graphical means, such as punctuation, emoticons, and emojis, to express emotions and attitudes in text. The aim is to analyse the use of punctuation marks in internet forums. Punctuation has at least six functions in modern texts: grammatical, emotive, intonational, conative, phatic, and text-formation function. The study analyses the use of punctuation marks (ellipses, dashes, quotation marks, exclamation marks, question marks, and conjunctions of punctuation marks) in emotive, intonational, text-formation, phatic, and conative functions. The empirical basis of the research comprises 500 syntactic constructions manually extracted from 13 internet forums – “BOOT”, “Cālis.lv”, “Copes Lietas”, “debets-kredīts”, “FIZMATI.LV”, “Dieviete”, “Kursors.lv”, “iAuto”, “Māmiņu klubs”, “PRECOS”, “Sieviešu Klubs”, “BUILDING.LV” and “Dabasdati.lv”. The article compares the use of punctuation in internet forums for female and male audiences. The study focuses on the posts, comments, and headlines of internet forums. The study employs a descriptive method.