In recent years, social media has gained significant popularity. The popularization of portable devices has produced a significant number of posts on social media along with a geolocation. Twitter is especially interesting. Thanks to an open Application Programming Interface ( API ), it ensures free access to published content. Data obtained this way gives new possibilities for social and geographic research. The research literature emphasizes the usefulness of Twitter for the purpose of the monitoring of extreme phenomena. This paper presents the main trends in research on Twitter tweets and technical solutions enabling data downloading.
