Gas and Galaxy Evolution in Poor Groups of Galaxies

Poor groups of galaxies are the repositories of most of the baryons in the local Universe and are environments in which galaxy evolution is likely to be both more recent and simpler than in the cores of rich clusters. Yet we know little about groups outside of our own Local Group. We discuss recent results from optical, X-ray, and radio observations of nearby poor groups that focus on the evolution of gas and galaxies in these common environments.