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In an era in which the quality and speed of the flow of information is crucial to the survival of individuals and businesses, marketing enjoying a revival. Rebirth in which we allow promotion of what we know, we know, and we offer a larger audience, using the effective ways possible. Why is e-marketing is used as a tool? Simple: because there customers. Many of our customers and potential customers their free time spend at social networks. And most of the heads of other businesses will certainly attest that their companies use some form of electronic presence on the world wide web, the simple and simple reason - their customers and associates requires it! And surely this trend will not stop in the near future... This paper examines the role of social networks. With the help of the Internet, social networks like Facebook or Twitter have enormous power of interpersonal advertising and promotion. Allowing instant sharing of information and activities with other "close" associates, friends and clients an advantage not only information, but also in getting quick and qualitative feedback that may be useful in the creation and operation of all current and future business activities . The advantage is that the cost is minimal, even negligible, and does not require a greater effort to continuously update of activities. The study and treatment of subject matter apply scientific methods. During the preparation of labor applied and methodological procedures that result in both theoretical and practical knowledge in. A series of a comprehensive analysis of the results obtained are extracted relevant conclusions reached. [ABSTRACT FROM AUTHOR]

Paper introduces methods for targeted information retrieval in the web space as a response to user needs using semantic technologies, web services and GPS. It focuses on targeted information of various types like, for example, contact information for organizations of a given category, their location on the map using GPS navigation, etc. [ABSTRACT FROM AUTHOR]