Cannes official website
Information in English on the City of Cannes can be found under
City of Cannes
General information on the French Riviera
Here you will find information about the French Riviera (called "Cote D'Azur" in French, or "Blue Coast"), a 150 mile strech of land and sea coast including cities like Nice, Monaco/Monte Carlo, Cannes, Antibes Juan-Les-Pins:
General information on the Provence-Alps-Cote d'Azur (PACA)
This englobes Cote d'Azur as well as great cities like Marseille (a 2hr drive or train ride from Cannes) as well the magnificent Provence area and finally the Southern Alps, reachable within an hour drive from Cannes.