Pleistocene foraminifer Funding in support of the Carbonate Tutorial was provided by a grant (DUE-0536085) from the Course, Curriculum, and Laboratory Improvement (CCLI) program of the Division of Undergraduate Education, National Science Foundation. Geoscience program officers for CCLI, Keith Sverdrup and Jill Singer, provided encouragement and helpful advice. Construction of the tutorial interface was supported by a grant from the Center for Instructional Technologies at the University of Texas at Austin.

Evaluation and assessment of the tutorial and its interface was accomplished with the help of the hundreds of geoscience and petroleum engineering students enrolled in the course GEO 416M Sedimentary Rocks in the Department of Geological Sciences, Jackson School of Geosciences, at The University of Texas at Austin. These students and their teaching assistants and instructors provided a wealth of suggestions and ideas that have influenced tutorial development.

Christopher Prince of PTS Technologies kindly hosted research assistant Sumanta Chatterjee in his Houston laboratory for two weeks in the summer of 2007 to make high-resolution scans of samples from the Christopher Kendall Collection. Robert Folk provided another substantial selection of samples from his immense teaching collection and also allowed us to once again package the pdf of the "Orange Book" along with the tutorial. We hope that future generations enjoy his book as much as we have.

Doug McCarty of Chevron provided several samples of porous dolomite. CL and X-ray map images for the techniques section were provided by Rob Reed (BEG). Ann Molineux of the Texas Memorial Museum supplied examples of carbonate peels. Ursula Hammes consulted on the Flugel biography and Mrs. Erentraud Fluegel-Kahler provided a photograph of Dr. Flugel. Paul Enos kindly shared his biography of Robin Bathurst. The Bureau of Economic Geology in the Jackson School of Geosciences gave the tutorial project a home and vital computer support during the last two years of construction. Kathy Brown of the BEG media group created a graphical design for the tutorial's top-level page. Final editing of the tutorial benefited tremendously from very constructive review efforts by David Budd and Terri Olson. Responsibility for the final version 1.0, including all errors and weaknesses, belongs solely to the authors, of course. If you want to take exception to some of our definitions and explanations please realize that David really tried to set us straight, but sometimes we didn't listen.

We are most grateful to have had the support of so many enthusiastic people.