Wikitravel,, a site containing information for travelers. I don’t think the wiki concept works in all cases, but this is a good example of where it could work. But what happens if it becomes too popular? Can’t you imagine lots of local restaurants and hotels fighting to delete negative information about their business?
Helpful tip: mobipocket has a template for creating-your-own-tourism ebook.
Here’s a discussion I started about the concept of DRM and ebooks. My last comment provided the coup de resistance. Library systems are providing digital content through netlibrary (which means encrypted Adobe DRM). That means basically that no portable devices can read anything they check out of the library without it. Is this a good situation? (At the very minimum, netlibrary should offer digital content as mobipocket ebooks).