Abstract
Axions are hypothetical particles that were introduced into the standard model of elementary particle physics to solve the so-called "strong CP problem."  Axions were subsequently (in the 1980's) theoretically identified as a possible dark matter candidate however the notion has been largely ignored with the exception of a single long running experiment, ADMX (for Axion Dark Matter eXperiment). Failure to find a crisp supersymmetry signature with recent LHC experiments together with the diminishing parameter space from directed exotic heavy particle dark matter searches have reignited interest in the axion solution.  A brief review of the background physics  will be presented together with a update on the progress on the construction  and recent commissioning of a second higher mass range experiment, the Axion Dark Matter eXperiment at High Frequency (ADMX-HF), being assembled at Yale's Wright Nuclear Structure Laboratory.