iINDEX is a free and open search resource for expanding the cross-disciplinary documentation in the spheres of Linnaeana related Natural & Cultural History material. It is based on the foundation developed via the comprehensive books of The Linnaeus Apostles Global Science & Adventure – 5,500 indexed printed pages with hundreds of thousands of search terms – and The Mundus Linnæi Series. Each of every one of these "search words" is linked to iBOOKS. iINDEX is also the key for iFELLOWS making it possible to ”ADD KNOWLEDGE” and thereby increase understanding of particular subjects.