Thermodynamics is the physics of energy, heat, work, entropy and the spontaneity of processes. It is closely related to statistical mechanics from which many thermodynamic relationships can be derived. Thermodynamics usually refers to equilibrium thermodynamics of quasistatic processes. Time-dependent thermodynamic processes are studied by non-equilibrium thermodynamics.- Category ID : 425795
from HyperPhysics portal. This is rather a comprehensive online physics handbook containing "Thermodynamics" chapter. Site has a handle navigation, good illustrations, and very detail content.
Intermediate tutorial by Richard Fitzpatrick covers topics such as probability theory, heat and work, applications, and quantum statistics. From the University of Texas at Austin.