You may find the following links useful, for not only understanding the game of boules, but also where to purchase equipment.
Petanque Websites:
Pen-Y-Coed petanque
Buy boules and equipment here.
Winning Petanque
A really helpful website set up by Pen-Y-Coed Petanque with loads of tips and information.
Equipment can also be purchased from the following websites (search - petanque):
IF YOU KNOW OF GOOD WEBSITES OR WOULD LIKE YOUR WEBSITE LINKED TO US PLEASE USE THE FEEDBACK FORM AND WE WILL ADD IT.
