Now for my apology to the reader: The amount of code in Contrib is very large — I could spend the whole of this book explaining all the extra features. Therefore, if this chapter fails to mention your favorite tool or supporting utility code, then I'm sorry; this is purely accidental.
There are particular organizations, such as CARET (http://www.caret.cam.ac.uk) and individuals, such as Ian Boston, Charles Severance, Stephen Githens, and Aaron Zeckoski, who achieve much and give back code improvements to the rest of us for appropriate reuse. However, then this book would, no doubt, be burnt by hordes of the tribe, angrily pointing out the vast contributions from others in the community, such as Brian Richwine, David Norton, Stephen Marquard, Beth Kirschner, David Roldan Martinez, and so on (visualize a long line of relevant contributors queuing into the vast distance). The community is active, from large organizations downwards, and all the activities are difficult to...