A colophon is a page in a book that gives publication information about the book. Typically, it includes production information on the typefaces used, the paper, perhaps what programs or equipment were used in producing the book, and the general style of the book.
Most books do not have colophons any longer, and I guess the reasons are mostly due to chronological and fiscal economy. Nonetheless, I think colophons are super interesting, and mourn not only the fading of the colophon, but also the circumstances that made the colophon important (i.e. the craft that printers and binders took in producing a book).
The text is all done with style sheets, and I’ve specified the font faces in the following order: Century Gothic, Lucida Grand, Lucida Sans, Verdana, Arial, Helvetica, sans-serif. What you see in your browser depends on whether you have these fonts installed on your system. I use Feather for the icons.