Preface " Information Systems and Modern Society: Social Change and Global Development " Belongs to the Advances in Information Systems and Social Change Series Book Project. There Are Four Sections and Section 1: Social and Personalized Learning in Web-based Environments

Section one consists of 5 chapters. In Chapter 1, Malinka Ivanova and Anguelina Popova explore " Formal and Informal Learning Flows Cohesion in Web 2.0 Environment. " The current state of the Web is recognized as " social " because of the multiple possibilities for participation, stimulation, and facilitation of interactions in groups, communities, networks, and among people with similar interests. Knowledge exchange is easier than ever allowing access to tools, services, and content. Social software and social media already have demonstrated their implications on the implementation of new methods for learning in both formal and informal educational settings. Web 2.0 can therefore be presented as a platform for building, running and combining services and applications. These social and technological changes have influenced Learning Management Systems (LMSs) development, proposing improved mechanisms for authoring, communication and collaboration. The features of contemporary LMSs 2.0 are conducive for the realization of multiple methods, directions, and channels for learning, encouraging informal conversation, generating collaborative content, and sharing information and knowledge. This exploratory study examines the affordances of a free hosted LMS 2.0 for learning enhancement in order to reveal the most effective approaches to its use. The research contributes to a better understanding of formal and informal learning flows in Web 2.0 environment, including LMS 2.0 and applications beyond it, that can help lead to improvements in students' learning experiences. The activities of students are examined and their analysis is used as a basis for a model showing the preferred places and applications for formal and informal learning. This research explores the advantages of new generation LMSs combined with Web 2.0 technologies to enhance the openness of the learning process (media, content, human capabilities), bring about dynamics and interactivity in formal and informal ways, and elicit opportunities for self-regulated learning. The findings suggest that informal learning activities are performed in all parts of the learning areas organized under LMS 2.0, including personal spaces, course learning places, public libraries, and learning communities. The results suggest the positive effects of social and technological changes using the Web on student engagement and achievements. The facilitating role of informal media to bring about better learning is noted. The employment of formal learning