Using a single back-end, a powerful multi-store solution can provide flexibility required to mange products, catalogs, orders, payments, etc. for different online stores as well as to make any necessary configuration changes for every website individually. You can list all your orders in one place without the hassle of going through all your stores one by one.
This centralized admin interface also lets you get a list of all your products and even search though them. This lets you find a products across your stores in few clicks. The app also lets you directly adjust your products inventory.
It lets you get reports that combine data from all your stores. It gives you a good overview of your sales.
Comes Inbuilt – Magento
Plug ins: Central Admin by Wezbe