Preface: Revenue from the saints, the showoffs, and the predators: comparisons of auctions with price-preference values (T. Salmon, R. M. Isaac). 1. Sealed bid variations on the silent charity auction (R. M. Iaac, K. Schnier). 2. Raising revenues for charity: auctions versus lotteries (D. D. Davis, L. Razzolini, R.J. . Reilly, B. Wilson). 3. The optimal design of charitable lotteries: theory and experimental evidence (A. Lange, J.A. List, M.K. Price, S.M. Price). 4. Multiple public goods and lottery fundraising (R. Moir). 5. The impact of social comparisons on nonprofit fundraising (R. Croson, Y. Shang). 6. Do donors care about subsidy type: an experimental study (C.C. Eckel, P.J. Grossman) 7. Identifying altruism in the laboratory ( G. Harrison, L.T. Johnson). 8. The voluntary provision of a public good with binding multi-round commitments (M.A. HHalloran, J.M. Walker, A.W. Williams).