The site "Electronic database of observation results from radio telescopes of PRAO ASC LPI" (http://observations.prao.ru/) was launched in 2006. This database provides access to observational instruments and telescope descriptions, techniques of making data samples per instruments, information about types of observations, observers and dates of observations and so on. As of August 2009, the observational result database contained more than 126000 data files. Data from PRAO instruments and radio telescopes are continuously being stored to this database. The statistical analysis of the data and its pre-processing facilities are available on-line from this database. Facilities for graphical display information and statistical analysis of data of some kinds of celestial radio sources were added to this system, and work on widening of sampling this sources with the aim of accounting every kinds of radio sources is carried out. The development of new facilities for on-line processing of monitoring data from PRAO radio telescopes is performed also. It works on the base of common postgresql database. All observed data of our observatories are written on a special 2-terabyte raid-array.