Internet-based learning develops very actively and continually grows in importance as a type of education. It has the greatest value in terms of access to information, novelty of information, its update rates and comprehensiveness. In such a dynamic field as remote sensing, the Internet resources already beat traditional libraries and image depositories. Internet-seminars of the Inter-University Aerospace Centre pursue the purpose to use achievements of scientific and technical revolution in the educational purposes, for distant training. Elaboration of new information distant technologies of educational process the Centre considers as a vital stage of development of remote sensing education. In 2000-2005 seven Internet-based seminars were held: "Obtaining satellite images over Internet". Opportunities of the order and acquisition through the Internet of satellite images with various spatial resolution were characterized, electronic addresses of their catalogues were given. "Digital processing of remotely sensed images. Handling multispectral images in the MultiSpec freeware". This program is a multifunctional yet very compact and easy-to use-tool for multispectral image classification. Three tutorials covered all of the basic aspects from image input to spectral signature analysis, unsupervised and supervised classification. "Aerospace images for the school geography studies: Mountains. Altitudinal zonality". It illustrated application of aerial and satellite imagery for the school geography studies on the example of Caucasian mountains. The tutorials progressed from visual interpretation and display to simple classification and from small to detailed spatial scale. "Images of new types. Terra: ASTER, MODIS, MISR". The possibilities of obtaining and use of the new satellite imagery were shown. The tutorials compare new images properties with that of Landsat/ETM and Resourse O/MSU-E. "Aerospace images for study of high mountain regions: Glaciation dynamics. Natural hazards". Multi-temporal images of the Caucasus were compared and analyzed. Several examples illustrated the possibilities of study of changes in glacial lakes and other objects. "The International Space Station as an ecological patrol. A role of manned space platform and orbital stations in studying global changes of the Earth". First photo images of the Earth from piloted spacecrafts and orbital stations together with results of their analysis were presented. The modern environmental researches carried out at the Russian segment of the ISS (including the program of monitoring of the dangerous natural phenomena and accidents "Hurricane" by Institute of geography of the Russian Academy of Science) were represented. Space researches of the great oceans. Researches of the World oceans by means of remote sensing . Basic problems and methods of remote sensing of oceans are introduced, oceans fields and the phenomena investigated by remote sensing methods are briefly considered. Examples of practical problems decision on the basis of the remotely sensed oceanographic data placed in the Internet are offered. Topics and methods for conducting the seminars are usually defined by the following principles: novelty of techniques and/or imagery; accessibility for variously experienced users; suitability for low-speed Internet connections and for low-end computers; demonstration of geographical applications as well as technology. Educational material of the seven Internet-seminars is planned to fix as an electronic manual, or training aids on CD-ROM.