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The e-business application can be considered as a new generation of computer information systems in the Internet era that needs the support from a solid information technology infrastructure including strategic objectives, physical components, and operational management. A survey was conducted to investigate some current practices and its implications of the information technology infrastructure existed in thirty organizations from ten different industries located in California. These organizations reported that they have implemented two or more e-business applications using the different types of the network operating systems and network security protections. The most used e-business development method is still the traditional in-house development method that offers the best management planning and controlling strategy to align the overall business and information technology objectives together. The system integration, e-mail system management, and customer relation management have gained their importance in the routine operating functions at the information technology department.