Social Networking is nowadays one of the main phenomena on the Internet. It is also the core of this book. The main task that this book is trying to follow is to create a portal which would demonstrate technical possibilities of integration of current popular social networks into one place. The book contains introduction of basic concepts in this field, i.e. Social Web, Web 2.0 and Social Networking. Furthermore, it introduces the individual social networks which were integrated in the portal and the technologies and standards used for the integration, such as OpenID, OAuth and OpenSocial. It also describes all stages of a development of the portal. In the final part of the book you can find a summary and evaluation of the results of the work and discussion of the possible future extensions of the portal.