Association Valentin Hauy
Publishes a Braille map of the Paris Metro. The website is in French only.
http://www.avh.asso.fr/

Express-Map.com
Online street search facility.
http://france.express-map.com/

Hot-Maps
A detailed interactive map of the Paris region.
http://www.hot-maps.de/europe/france/paris/homeen.html

IsMap
An interactive street map that covers the whole of France.
In French only.
http://www.ismap.com/

Mappy.fr
Zoom in on any address in France, indeed, on any address in Europe. You can even use this site to search for tourist offices, gas stations, post offices and such like in major cities all over the Continent.
http://www.mappy.fr/

Media Cartes
Sells a whole range of French maps online.
http://www.media-cartes.fr/

Mobile En Ville
A map site that contains information on wheelchair-friendly routes around Paris.
http://www.mobile-en-ville.asso.fr/

Paris Eiffel Tower News
Colour maps of all 20 disctricts of Paris.
http://www.paris-eiffel-tower-news.com/paris-maps.html

Paris Eiffel Tower News
Contains a map of the city's metro network.
http://www.paris-eiffel-tower-news.com/paris-metro-maps.html

Paris Metro
Map of the Parisian subway system and a guide to its stations.
http://www.webscapades.com/france/paris/metro.htm

Paris Tourisme.com
Useful tourist map of the French capital.
http://www.paris-tourism.com/carte/

Paris.org
A map of the city's major museums and monuments.
http://www.paris.org/Maps/MM/

Paris.org
Metro, RER and bus maps.
http://www.paris.org/Metro/

RATP
Official maps of the Paris Metro, Noctambus and RER systems.
http://www.ratp.info/informer/anglais/index.php#

Sprachurlaub.de
A searchable interactive map of Paris in PDF format.
http://www.sprachurlaub.de/stadtplan/stadtplan-paris.htm

Sytadin
Paris traffic map.
http://www.sytadin.tm.fr/

Wanadoo.fr
View pictures of buildings and streets all over the city with the aid of an interactive map.
http://photosvilles.wanadoo.fr/x/woovilles/paris.html

World Executive
Interactive map of central Paris.
http://www.worldexecutive.com/cityguides/paris/maps.html

World Web.com
An interactive map of Paris that highlights hotels, restaurants, attractions, transport and shops in the centre of town.
http://www.paris.worldweb.com/Maps/CityMaps-Flash/Paris-Map.html