Matt, methinks you should get your head out of your a**e long enough to do some basic fact checking.
First, a quick reminder : islamic terrorist != AQ.
As far as France is concerned, I'd think the demographics are largely similar to those in the UK.
Second and third generation immigrants ? Check. The high point of immigration from Northen Africa was during the 60s and the 70s, following the economic boom of the time, the need for cheap labor, and the independence of our former colonies.
Education and cash to get internet access ? Check. Although earning levels are lower than average for that demographic group (as in the UK, I suspect), it's still plenty enough to afford ADSL; and although they don't usually have stellar academic records, they still go to school long enough to learn how to read; and, more importantly, to become disillusioned with their prospects if they stick to school and try to make something of themselves.
As a sidenote, the biggest French blog site is run by Skyrock, a hiphop / rap radio mostly popular in poor suburbs and housing estates (IIRC they pride themselves on being the rap radio with the most listeners *in the world*).
Chip on their shoulder ? Check. They've been brought up with a culture that doesn't mesh with the society they live in; they see themselves as unfairly put upon; they couldn't give a toss about lawful behaviour; they see the rest of France as racists peasants who'd toss them out given half a chance, not that they may be far wrong on that count unfortunately.
Islamic background ? Check. Algeria has been having problems with fundamentalist groups for more than 20 years now, and some of that has spilled over into France. AQ may have done a marketing coup recently by rebranding those terrorists as their Algerian branch, but they were along long before the world had heard of Osama. The biggest islamic terrorist attack in France dates back to 1995, when a couple of subway stations were blown up by these same Algerian radicals. 1995 ? The US was probably still selling weapons to OBL at that time.
Honestly, I think the main difference comes from government attitude towards radical preachers. You have a metric sh*tload of them in London; we have few if any. They find safe haven in the UK, so they settle there and do their thing. Most of the French blowhards who've been arrested in Irak or elsewhere under suspicion of terrorist activities have spent time and been coached in the English mosques.
So when French yoof want to fight back against society or become confused with their life of loafing around and selling drugs, they stand less chance of becoming indoctrined by radical preachers and learning how to make bombs. They keep dealing drugs instead, or try to ambush police and firefighters in street guerillas...
And that behaviour isn't yet classified as terrorism (whether it should be is another question entirely)