Do you know <a href="http://earth.google.com/">Google Earth</a>? If not, download it...
Then you will be able to use <a href="http://www.zebloc.com/">Goobloc</a> if you look for bouldering areas in France.
Moreover, some areas dedicated pages are being translated into english. <a href="http://www.zebloc.com/bleau/bleaue.php">Fontainebleau</a>, <a href="http://http://www.zebloc.com/66/targae.php">Targasonne</a> ... Next one will be Annot in e few days. Stay tuned at ZEBLOC.COM
Google earth : bouldering in france with goobloc