Generally every wiki has a main purpose, topic, is focused on something, has its role. The structure of a Wiki permits Mass collaboration. But there is also the need of collaboration between wikis. This permits to have advantages and avoid problems. Avoided Problems: * Duplication * Isolation * Other Advantages: * Inter-wiki linking increases page-rank * Other Examples of inter-wiki collaboration. * Wikinode * WikiMedia * WikiFarms This article is a stub. You can help by [ expanding it].