GurlGarb
GurlGarb is Quinn's favourite online store, and has personalised homepages. It contains special offers, a Wishlist function (Quinn has a Wishlist there), and will soon have a function where "your parents can transfer money directly from their bank account... it's fun and irreversible!"
It's targeted at teenage girls, as shown by their End Of Reason Sale: one dress is cheerfully said to be ugly, so "get Mum to buy it for you and then exchange it for something hot", and another says "So innocent, no one will suspect you of being vicious or backstabbing!".