Just to let you know that I have revised the Family Tree of Origami page on my site which offers an analysis of origami into categories by the intention of the designer, folder or performer. This revision was long overdue since I wrote the original page in the late 1990s. You can find it at http://www.origamiheaven.com/familytree.htm. Comments welcome.
I have also added a page about The Fifth Pig and other propaganda Fold-Ups to the history section. http://www.origamiheaven.com/historyoffoldups.htm If anyone has any more detailed information about these fold-ups, particularly about their early origin I would love to hear it. Thanks Dave