There is a huge literature on the French Revolution and some excellent websites. See here, and, in particular, here.
I have made particular use of the following books:
Andress, David, The Terror: Civil War in the French Revolution (Abacus, 2005)
Cadbury, Deborah, The Lost King of France: The Tragic Story of Marie-Antoinette’s Favourite Son (Fourth Estate, 2003)
Doyle, William, The Oxford History of the French Revolution (Oxford University Press, 1989)
Fraser, Antonia, Marie Antoinette: The Journey (Weidenfield and Nicolson, 2001)
Christopher Hibbert, The French Revolution (Penguin, 1982)
Jones, Colin (ed.), The Longman Companion to the French Revolution (Longman, 1990)
Moorhead, Caroline, Dancing to the Precipice: Lucie De La Tour Du Pin and the French Revolution (Chatto and Windus, 2009)
Nagel, Susan, Marie-Thérèse: The Fate of Marie Antoinette’s Daughter (Bloomsbury, 2008)
Schama, Simon, Citizens: A Chronicle of the French Revolution ( Alfred Knopf, 1989)
Scurr, Ruth, Fatal Purity: Robespierre and the French Revolution (Metropolitan Books, 2006).
I have also made use of the excellent material produced by the Open University for courses A103 ('Introduction to the Humanities) and A207 (Enlightenment to Romanticism).