DHL
Contains information about the company's French express parcel delivery operation.
http://www.dhl.com/wrd/fr.html

Discover France
Overview of the French postal system, as well as the location details of Paris' central post offices.
http://www.discoverfrance.net/France/DF_postal.shtml

France e Keys
Covers topics such as sending mail, delays, post offices, stamps, parcels and postage rates. http://www.francekeys.com/english/general/poste.shtml

La Poste
Official website of the french postal service. In French only.
http://www.laposte.fr/

Paris On-Line
Contains lots of practical advice on sending and receiving mail in Paris.
http://www.paris-on-line.com/eng/turisme/pracinfo_consells_4.htm

Yahoo.com
Lists the city's main post offices, postal rates and details of who offers express mail services.
http://travel.yahoo.com/p-travelguide-843133-paris_mail-i