A New version of The Real Costs plugin is available. Download it now New for this version: Carbon footprints for driving directions sites Works on Mapquest.com and RandMcNally.com Unannounced in previous versions: A new smaller, better designed interface Integration with many more air carriers worldwide Annual carbon footprint comparisons for the 100 largest nationsAuto-updating Coming Soon: Integration with Yahoo Maps, and Google Local Integration with HopStop and Google Transit