These google dorks are great for finding injectable shopping websites. SQLI them and get username:passwords or use it for whatever you like (creditcards, etc..)
I'm not responsible for what you do with it. Its for educational purposes only!
inurl:".php?cat="+intext:"Paypal"+site:UK
inurl:".php?cat="+intext:"/Buy Now/"+site:.net
inurl:".php?cid="+intext:"online+betting"
inurl:".php?id=" intext:"View cart"
inurl:".php?id=" intext:"Buy Now"
inurl:".php?id=" intext:"add to cart"
inurl:".php?id=" intext:"shopping"
inurl:".php?id=" intext:"boutique"
inurl:".php?id=" intext:"/store/"
inurl:".php?id=" intext:"/shop/"
inurl:".php?id=" intext:"toys"
inurl:".php?cid="
inurl:".php?cid=" intext:"shopping"
inurl:".php?cid=" intext:"add to cart"
inurl:".php?cid=" intext:"Buy Now"
inurl:".php?cid=" intext:"View cart"
inurl:".php?cid=" intext:"boutique"
inurl:".php?cid=" intext:"/store/"
inurl:".php?cid=" intext:"/shop/"
inurl:".php?cid=" intext:"Toys"
inurl:".php?cat="
inurl:".php?cat=" intext:"shopping"
inurl:".php?cat=" intext:"add to cart"
inurl:".php?cat=" intext:"Buy Now"
inurl:".php?cat=" intext:"View cart"
inurl:".php?cat=" intext:"boutique"
inurl:".php?cat=" intext:"/store/"
inurl:".php?cat=" intext:"/shop/"
inurl:".php?cat=" intext:"Toys"
inurl:".php?catid="
inurl:".php?catid=" intext:"View cart"
inurl:".php?catid=" intext:"Buy Now"
inurl:".php?catid=" intext:"add to cart"
inurl:".php?catid=" intext:"shopping"
inurl:".php?catid=" intext:"boutique"
inurl:".php?catid=" intext:"/store/"
inurl:".php?catid=" intext:"/shop/"
inurl:".php?catid=" intext:"Toys"
ENJOY!