Jordi Casadellà, Daniel Casanueva, Javier Guallar
The article aims to analyze the content curation process and the impact of TELLUS and NEREUS newsletters on subscribers . These newsletters , focusing on geology and ocean sciences , disseminate curated news to keep readers informed about scientific developments . The study seeks to establish metrics for accurately measuring subscriber interest and satisfaction A key challenge is the lack of specificity and standardized metrics for such specialized newsletters . To achieve the objectives, this study employees the almost study methodology . The evolution of the newsletters are analyzed based on data extracted from messaging platforms Additionally , participant observation is used to examine key aspects such as platforms used , the curation system , information sources , topics covered , and the developed metrics system. Findings reveal stable open and click -to-open rates over time , indicating that subscribers maintain consistent expectations of interest regardless of the specific content Additionally , subscribers are classified into 16 categories based on interaction habits , providing valuable insights into reader behavior . These classifications and metrics are essential for understanding the audience and measuring the newsletters ' impact and success. The study highlights the importance of continuous adaptation to new technologies, the value of specialized information for a diverse audience, the relevance of email as a communication channel, and the development of own metrics focused on user satisfaction. These contributions can be applied to other libraries and scientific dissemination newsletters.