The Web provides a powerful means of disseminating spatial information, but managing and updating Web-based applications can be a complex and time-consuming process. These Web-based applications typically require maintaining and updating different versions of Avenue scripts, ArcView GIS extensions, HTML files, Java code, and spatial data. To simplify this complexity, we have developed a number of procedures that streamline and/or automate maintenance of ArcView IMS projects. We will address issues such as maintenance of working and serving projects, reduction of script proliferation and redundancy by building extensions, addressing the numerous details prior to serving a project, and working within a team development environment.