Schmap is an interactive map and guide all in one. It also allows you to publish your own ‘schmaps’ – to share trip itineraries, local reviews etc. In their words:
Schmap’s series of digital travel guides integrates dynamic maps with useful background reading, suggested tours, photos from the traveling public and reviews by local correspondents (for sights and attractions, hotels, restaurants, bars, parks, theaters, galleries, museums and more) to profile 200 destinations throughout the United States, Europe, Canada, Australia and New Zealand. Schmap Guides can be browsed online, or downloaded for offline trip planning and when traveling with a laptop.
It interfaces with Google maps & so has the marker on the page that you can run your cursor over to read information or see a photo. I ran a Schmap on Sydney – have a look for yourself.