Bridging the Digital Divide by Open Source development the development is closer to the end users than it is when software is produced in developed countries and afterwards exported. End users of application software can rarely be expected to be `developer-users' themselves, par- ticularly in developing countries. But we consider a certain closeness of developers to end users es- sential to streamline user needs with outcomes of software development, to facilitate the usability of the software. BUILDING BLOCKS Table 4 shows an overview of building blocks for open source based development cooperation projects. These tools and processes are comple- mentary to general open source techniques such as CVS source code repositories, issue trackers, contributor recognition, etc. The list of building is developed before the source code is published under an open source license. During the initial development the focus is to form a community of the developers within the project, both from North and South. Later the spinout can lead to greater adoption of the software by more organizations and to a more stable community. Furthermore, it can help to resolve ambiguity about control and owner- ship by applying open source principles. In many cases the license choice will need to take into account both community interests and commercial interests. A careful trade-off facili- tates proper license choice. Community interests include the attractiveness of the software and the adaptability to local needs. Commercial interests have to be satisfied in order to ensure the funds for continuous development. The development model tries to combine two goals: high quality software and local capacity development. Regarding the quality of software,