This thesis proposes a new type of information, called hovering information, which is stored in geographical regions and does not rely on any infrastructure but on the mobile devices that populate the respective geographical region, its anchor area. A storage and two retrieval algorithms are proposed. They take advantage of the broadcasting nature of mobile ad hoc networks while controlling the network overhead thanks to a novel mechanism. Further, this thesis studies the persistence, accessibility, critical mass of density of nodes, the messages complexity as well as the resilience to failure of the algorithms. It also proposes a middleware and its respective implementation as an Android service which enables mobile applications to store and retrieve information from geographical regions.