STINAPA will hold a presentation about the website Observation.org. The goal of the presentation is to give the interested public more clarity about the website and the usefulness of entering own observations. Extensive attention will be paid to the functioning of the website, how to look up species observations and their locations, as well as entering observations. This way, we want to challenge the hobbyist to determine observed species. With more registered observations, the website will give a better impression of the spread of certain species and species diversity, as well as the size of the population of a particular species. Everyone is welcome to the presentation.