This thesis investigates the colloquial and highly (inter)subjective non-dialogical uses of discourse markers (DMs), especially well, like and oh yeah, in American journalistic texts based on corpus data from the Corpus of Historical American English (COHA) and the News on the Web (NOW). It demonstrates that such uses are a recent phenomenon, which have gained rapidly in frequency since the 1990s. In journalism, these DMs are developing genre-specific functions that resemble their textual oral functions, but are, at the same time, adapted to suit the needs of writing in (inter)subjective functions (Aijmer 2013). Moreover, these DMs are increasingly used to highlight lexical choices. These developments contribute further insights into what is already known about change occurring in journalistic writing. This thesis discusses how these colloquial DMs are adapted to journalistic writing in order to convey (inter)subjective meanings. Furthermore, the timing of these developments indicates a later wave of change to journalism that has not received sufficient attention in colloquialization studies.