In this network, every node is an aid organization. Nodes are connected if the two aid organization are mentioned together often in the websites of the other aid organizations. The color of the node is how much an organization is focused on aid issues: a red node is a generic organization, while blue nodes are organizations very focused on few issues. The size of the node is how much central the organization is in the network.
From the network, we can see that there is a single core, meaning that there are no isolated groups of organizations.
Moreover, central (big) organizations tend to be red, meaning that organizations not focused on particular development issues are more central in the organization space.