Here's some very good information I located on one of my favorite sites, expatica.com. Expatica is a site for english speaking expatriates or anyone interested in living or moving to their country of choice.
Looking for work in France? Expatica France covers everything you need to know about expat employment in your new country of residence, from work permits and European employment and immigration regulations to job applications and local labour law. They even have a checklist to make sure you're on the right track for employment.
Detailed articles such as A guide to job-hunting in France and Finding work in Paris take you through the rules regarding expat employment, including work permits, who does or doesn’t need one, whether partners can work or not, information about a special European employment programme for highly skilled migrants, expatriate work for students, conditions applied to entrepreneurs and working holiday schemes for expats from Canada, Australia and New Zealand.
Teaching English as a foreign language - (this is what I've heard that many, many people moving to France end up doing to make a living)
Teaching English, which for some working expats is a way of making ends meet when they first arrive abroad, can turn into a full-time occupation. Read articles A passport to expat life and English pensioners in France offer immersion classes at home to be inspired. (these are interesting accounts of income meeting inspiration)