This paper discusses the way in which we constructed a framework for the publication on the web of historical sources at the Institute of Netherlands History (ING) in The Hague (The Netherlands). The framework is built using the web application platform Zope and is flexible because of its modular construction. This makes it possible to publishing heterogeneous researchdata with their own requirements for accessibility and usability, while maintaining uniformity in presentation and access whenever possible. Because a number of different approaches were used in its design, it is not the end solution to a problem, but ready to grow and evolve as new features are required.