While I usually instruct my clients to buy the majority of their clothes in the stores, at least until they have a good handle on how clothes fit their body type, there are some great sites with great deals out there to be perused. Most of these are members-only groups, so if you want in, let me know!
www.ideeli.com
www.giltgroupe.com
www.ruelala.com This is one you can be invited or get on the waiting list
www.shopittome.com
www.hautelook.com
Happy Shopping!