Abstract
The current situation, the state of the art and problems about utilization of the Internet on business are described. The contents are consisted of following three parts, intra-enterprise utilization of the Internet (ex. implementation of the intranet), inter-enterprise utilization (ex. inter-enterprise linkage of their information resources) and utilization among enterprise and consumers (ex. construction of virtual mall). Also the technical trends of“electronic settlement", which is the essential element for popularizing the Internet in the commercial aspect, are reviewed.