Fabrication using wire-like nanostructures is sometimes pursued out of necessity. An example is the high density of features required for state-of-the-art circuitry that dictates the widths of many electronic connections. However, nanowires can also be pursued for their properties that can be exploited in the fabrication of new functional materials or devices. A diverse range of properties is accessible through the numerous types of nanowires that can be produced by synthetic efforts. Integrating these nanowires as key components will require the development of appropriate methods to assemble these materials. These techniques complement many different approaches to nanofabrication. This review will discuss a few of the approaches being pursued for directing the assembly of nanowires into various device architectures.