Today, the lifelong learning has become a necessity in most professions, especially in computer science where people are constrained to follow fast developments.This learning is predominantly informal, based on selfstudying. Internet has turned into the most important source of all kind of information. Many Web sites provide tools and services for exchange of knowledge between people sharing a common concern, and that has a significant influence on self-studying. Personal learning environment provides an opportunity for the user to create and manage his or her environment for learning and knowledge exchange. This article describes a model of personal learning environment based on available free Web services.