David Starner wrote:
Eg. geografic tagging. While visiting someplace you may want to find all book references that refer to the place you are in.
Maybe. There's a very real question whether it's worth the man-power to mark this up, and it's really a bit of a gratuitous feature.
Gratuitous to people who have no vision. People who think they are `preserving´, while they are only consigning to rot on a different medium. You take a book from a dusty bookshelf, digitize it, and put it on a file server. You have taken content expressed in technology of 500 years ago and `updated´ it to technology of 20 years ago. Today its all mobile devices. Ebooks have to come along in your shirt pocket or die. Wikipedia is doing it: http://en.wikipedia.org/wiki/File:Wikitude3.jpg There are many travel books in PG that could be marked up like that. -- Marcello Perathoner webmaster@gutenberg.org