Affiliation Networks Since many of the common structures that we use everyday, such as the Internet, the power grid, and various software components, have complex networks embedded in them, being able to measure and model these networks is essential to maintaining their reliability, safety and in some cases their security. One way to help understand the structure of certain networks is to examine what common group memberships (or affiliations) the entities in the network share. Linking entities to their common affiliations gives an alternative type of network commonly called an affiliation network. We will examine some of the useful properties of affiliation networks, and our efforts in using them in network modeling and analysis. In addition, I will spend a few minutes talking about opportunities at NIST, especially for undergraduate and doctoral students. Bio Brian Cloteaux is a staff researcher at the National Institute of Standards and Technology in Gaithersburg, Maryland in the Computing and Communications Theory Group of the Information Technology Laboratory. He received his PhD in Computer Science from New Mexico State University in 2007 and has previously worked at ExxonMobil in both computing and research divisions.