With the ever decreasing cost and size of sensors, the instrumentation of the world becomes possible, with a wide range of meteorological, commercial, and personal applications. Sensor networks, when not micromanaged in terms of 'topology,' are actually ad hoc networks, in most cases not mobile or with occasional mobility. One lesson that has been learned from the work on more general, and possibly mobile, ad hoc networks is that solutions from the wired world do not usually apply directly to large ad hoc topologies. Position-centric routing has a number of advantages over node- and data-centric: there are no routing tables to be maintained, it has good resilience in the face of mobility, and does not incur high overhead like on-demand routing schemes. Being convinced that positioning capability is necessary in the new ad hoc and sensor networks, one may argue that with the general availability of the Global Positioning System and the proliferation of commercial devices, the problem is almost solved. This article surveys methods used to infer locations in a multihop fashion in networks with or without the mentioned capabilities