The Beetle likes cityguide.travel-guides.com

Here you can select from a number of cities around the world and compile your own guide, for free. There is a very diverse set of headings from which to chose, e.g. history, cost of living, getting around, shopping, excursions, major sites, tourist information, street maps, nightlife, sport, culture, special events etc.

If you are going away for the weekend and don’t want to buy a guidebook or just want to do some digging around, this is an excellent resource.