NIST Chemical Kinetics Database
A compilation of kinetics data on gas-phase reactions. Compounds can be entered by name or molecular formula (e.g. benzene or C6H6). Results can be plotted. There is also a bibliographic search (by author, title, etc.)
NDRL Radiation Chemistry Data Center (chemical kinetics in solution, from Notre Dame)
"The continuing program of the Radiation Chemistry Data Center for the compilation of data has emphasized the collection and review of reaction rate data for transient radicals, radical ions and excited states in solution. The data largely results from the techniques of pulse radiolysis and flash photolysis and related methods which have produced a large body of kinetic data for chemical reactions occurring in less than about 10-3 seconds. Compilations of this data have appeared in a series of refereed papers and reports. The data, including recent additions, is here made available to the scientific and technical community as a world wide web resource."
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