UbiSwim.org designed and developed a collaborative ubiquitous/pervasive and mobile computing system for monitoring and improving swimmers' personal fitness & wellness. This project is part of the MSc thesis in "Engineering of Mobile and Pervasive Computing Systems" of the Hellenic Open University - School of Science & Technology postgraduate student Ioannis Asproloupos under the supervision of Professor and Mentor Mr. Konstantinos Chorianopoulos. UbiSwim combines wearable, mobile, web service technologies and our endless passion and love for swimming, in an innovative system that boosts swimmers' motivation, improves performance, allows real time interactions while having fun and more!