The Mallet Chemistry Library at the University of Texas provides this recently updated site, a no-nonsense search interface to bibliographic information about 129 "printed handbooks and compilations of thermodynamic and thermophysical data for chemical compounds." Users simply enter the properties and compounds they are interested in and a list of sources that are relevant to the query is returned. Each source contains brief bibliographic information, along with an abstract. The number of indexing terms and the ease of searching make this site stand out. Note that large compilations (Bielstein, etc.), online databases, and standard handbooks are not indexed by the database.