| Category | Online Retailer | 2010 Online Sales |
| Mass Merchant | |
| Office Supplies | |
| Computers/Electronics | |
| Computers/Electronics | |
| Office Supplies | |
| Mass Merchant | |
| Mass Merchant | |
| Mass Merchant | |
| Office Supplies | |
| Computers/Electronics | |
| Computers/Electronics | |
| Computers/Electronics | |
| Books/Music/Videos | |
| Computers/Electronics | |
| Hardware/Home Improvement | |
| Mass Merchant | |
| Mass Merchant | |
| Apparel/Accessories | |
| Computers/Electronics | |
| Mass Merchant | |
| Apparel/Accessories | |
| Mass Merchant | |
| Computers/Electronics | |
| Apparel/Accessories | |
| Housewares/Home Furnishings | |
| Mass Merchant | |
| Mass Merchant | |
| Health/Beauty | |
| Toys/Hobbies | |
| Health/Beauty | |
| Mass Merchant | |
| Mass Merchant | |
| Apparel/Accessories | |
| Apparel/Accessories | |
| Computers/Electronics | |
| Office Supplies | |
| Computers/Electronics | |
| Apparel/Accessories | |
| Apparel/Accessories | |
| Sporting Goods | |
| Books/Music/Videos | |
| Books/Music/Videos | |
| Hardware/Home Improvement | |
| Specialty/Non-Apparel | |
| Flowers/Gifts | |
| Health/Beauty | |
| Food/Drug | |
| Apparel/Accessories | |
| Apparel/Accessories | |
| Apparel/Accessories | |
| | Category | Online Retailer | 2010 Online Sales |
| Housewares/Home Furnishings | |
| Computers/Electronics | |
| Apparel/Accessories | |
| Books/Music/Videos | |
| Housewares/Home Furnishings | |
| Apparel/Accessories | |
| Apparel/Accessories | |
| Books/Music/Videos | |
| Automotive Parts/Accessories | |
| Jewelry | |
| Mass Merchant | |
| Sporting Goods | |
| Food/Drug | |
| Specialty/Non-Apparel | |
| Office Supplies | |
| Specialty/Non-Apparel | |
| Apparel/Accessories | |
| Computers/Electronics | |
| Specialty/Non-Apparel | |
| Apparel/Accessories | |
| Flowers/Gifts | |
| Health/Beauty | |
| Food/Drug | |
| Specialty/Non-Apparel | |
| Food/Drug | |
| Apparel/Accessories | |
| Mass Merchant | |
| Apparel/Accessories | |
| Apparel/Accessories | |
| Hardware/Home Improvement | |
| Food/Drug | |
| Mass Merchant | |
| Food/Drug | |
| Mass Merchant | |
| Hardware/Home Improvement | |
| Sporting Goods | |
| Apparel/Accessories | |
| Apparel/Accessories | |
| Apparel/Accessories | |
| Health/Beauty | |
| Hardware/Home Improvement | |
| Apparel/Accessories | |
| Apparel/Accessories | |
| Apparel/Accessories | |
| Apparel/Accessories | |
| Mass Merchant | |
| Food/Drug | |
| Apparel/Accessories | |
| Food/Drug | |
| Computers/Electronics | |
|