Since the 1960's, fuel cells have been promoted as a clean, efficient power source just around the corner. While many functioning demonstration units were produced over the years, technical challenges prevented them from being mass produced. However, over the past few years significant breakthroughs have occurred, and fuel cells are now becoming commercially available. Locate at least three newspaper or magazine articles within the last two years describing either a fuel cell breakthrough or announcing the installation or commercial availability of fuel cells or a fuel-cell-powered device. Post links to the articles, or references if they are not available online, and provide a short summary of the contents of the articles including the type of fuel cell used if known