The local network of the Astronomical Institute (AI) of the St. Petersburg State University, supported by the Netware environment, integrates several dozens of computers and provides a connection to Internet. The astronomical data, maintained at AI (Database of Radio-astronomical Catalogs -- RAC DB, Galaxies data), are accessible to all local users. Most of the data is accessible through the Internet as well. The development of RAC DB was started in 1994. At present the RAC DB consists of several dozens of well known radio astronomical catalogs and some catalogs of radio sources in galaxy clusters, produced at AI. Galaxies database, which is available at present only for the local users, includes: active galaxy nuclei data (optical polarimetric time series, optical light curves since 1967--1968), polar ring galaxies data (6-meter telescope images and rotation curves), data related to interaction of galaxies. Three access methods are available for RAC DB users: FTP-access, on-line access and access via World Wide Web.