The SITE100 and SOIL100 projects are collaborations of researchers with complementary interests in arthropod surveys using molecular methods. Individual collaborators are listed under the “Study Sites” tab with the respective project description. The project has been started with funding from the Biodiversity Initiative of the Natural History Museum (2013-2015) to work out the methodology. It is currently supported by computing resources at the Chinese Academy of Sciences, Beijing, while several subproject have independent funding.