You might start with: http://www.limitstogrowth.org/WEB-text/france-immigration.html
Then look at:
http://actuajihad.wordpress.com/2006/04/03/throwing-stones-at-girls-dressed-to-sexy-sharia-in-france/Throwing stones at girls dressed too sexy
Sharia in France.
Or maybe http://www.jihadwatch.org/archives/008902.php
French Muslim leaders want autonomy, Sharia law
Then there is http://brain-terminal.com/posts/2007/03/23/the-multicultural-endgame-sharia-law-rules-europe
The Multicultural Endgame: Sharia Law Rules Europe
France is proud of their radical secularism, and they don't take kindly to any attempts to change that system. That's why you don't see the kind of radical Islamic nonsense in France that you see in Great Britain. If some imam gets up in a mosque and starts making statements against the French government, he's likely to be arrested by the police and deported from the country with the kind of "due process" that would make Pat Buchanan seem like a Mexican Muslim.