3 links
La Conciergerie
conciergerie.com
Paris metro and museum pass. Also booking service for excursions, tours, restaurants, Lido and Moulin Rouge cabarets.
Paris by Bike
jpricaud.com
Some cycle routes illustrated with maps and photos. Vote for the biggest scourge of the cyclist.
Paris by Design
parisbydesign.com
Creating personalized itineraries for individuals, families and small groups.