On-site computer information technology services, namely, data disaster recovery, infrastructure security, namely, designing and computer systems administration of local area network and wide area network devices of others, updating of computer software relating to computer security and prevention of computer risks, computer systems vulnerability analysis, namely, using various computer analyzer software to detect and quantify vulnerabilities in information technology systems; computer system administration and support in the nature of troubleshooting of computer software problems of server-based operating systems, enterprise resource planning applications, personal computer systems and local area network and wide area network devices of others; planning, designing and implementation of computer networks, including, computer network database design, implementation and computer system administration; computer diagnostic services and helpdesk end user support; computer IT project management services and programming services; creating, maintaining, managing and monitoring web sites for others; and designing and implementing web pages for others