Don't want to be too pedantic and as said allolex it is your translation, however I don't really like:

• "Notre but est d'avoir un coin sympa d'internet...", I would replace it by "Notre but est d'avoir un coin sympa sur internet..." or "...sur l'internet..." -- know it is only a minor modification.
• "...constitueront une imposante archive documentaire de questions-réponses..." where I don't know if you can say that an "archive" is "imposante" and I would rather use "considérable" instead (given by a crappy dictionary). This would make something like "...une archive documentaire considérable de questions-réponses".

Hope it is helpfull, good luck for your work...