Oh, I love shopping! Here are some of my favorites:
eluxury.com (they have many brands that you can't buy online anywhere else)
tiffany.com
nordstrom.com
puma.com
jcrew.com
neimanmarcus.com
amazon.com
saksfifthavenue.com
marthastewart.com
anthropologie.com
And...there's this cool site called igive.com -- if you sign up there and pick a charity, they'll donate a small percentage of your total purchase from a variety of sites to your charity if you go through igive.com. I use it to donate to a local animal shelter.