The article provides a literature review on connectivism in order to present evidence, that the learning theory which typically has been used for e-learning, can (or even should) be applied to the andragogical activities provided during business gatherings (trade fairs and congresses). Therefore, the idea of connectivism is discussed, the four key principles of connectivism i.e. autonomy, interactivity, diversity and openness are defined. The adequateness of the principles of connectivism and the andragogical model of processual learning for professional gatherings is proved. The aim is to indicate the areas for further research concerning andragogical activities for hybrid and on-line professional gatherings.