Propagating Trees and Shrubs
Most land grant universities have an online Extension publication on plant propagation, and one that's especially comprehensive is Propagating Deciduous and Evergreen Shrubs, Trees, and Vines from Washington State University. It has detailed information on types of cuttings, factors that affect rooting, procedures for making and handling cuttings, and a long list of plants with information on most favorable time to take cuttings, the best kind of cutting, and expected success.
More on Plant Propagation
For great graphics -- including lots of color photos -- on all aspects of plant propagation, look to the book, American Horticultural Society Plant Propagation: The Fully Illustrated Plant-by-Plant Manual of Practical Techniques, edited by Alan Toogood (DK Publishing, 1999; $35.00). The downside to this book is that it has hardly any specific information about rooting hormones. For that, the best resource is Michael Dirr's Manual of Woody Landscape Plants: Their Identification, Ornamental Characteristics, Culture, Propagation and Uses (Stipes Publishing, 1998; $56.80). Of course, besides the detailed propagation information for each plant, Dirr's book also has a wealth of detail about just about any tree or shrub you might consider growing.