| Category | Users | Items | Ratings | |||
|---|---|---|---|---|---|---|
| Arts Crafts and Sewing | 218 | 93 | 255 | ratings | reviews | metadata |
| Automotive | 167 | 54 | 182 | ratings | reviews | metadata |
| Books | 7,714 | 2,335 | 9,146 | ratings | reviews | metadata |
| CDs and Vinyl | 0 | 0 | 0 | ratings | reviews | metadata |
| Cell Phones and Accessories | 637 | 233 | 810 | ratings | reviews | metadata |
| Digital Music | 0 | 0 | 0 | ratings | reviews | metadata |
| Electronics | 5,341 | 1,303 | 6,277 | ratings | reviews | metadata |
| Grocery and Gourmet Food | 500 | 226 | 826 | ratings | reviews | metadata |
| Home and Kitchen | 2,078 | 765 | 2,491 | ratings | reviews | metadata |
| Industrial and Scientific | 24 | 17 | 24 | ratings | reviews | metadata |
| Kindle Store | 0 | 0 | 0 | ratings | reviews | metadata |
| Movies and TV | 0 | 0 | 0 | ratings | reviews | metadata |
| Musical Instruments | 310 | 147 | 409 | ratings | reviews | metadata |
| Office Products | 184 | 58 | 190 | ratings | reviews | metadata |
| Sports and Outdoors | 1,819 | 582 | 1,978 | ratings | reviews | metadata |
| Toys and Games | 437 | 124 | 477 | ratings | reviews | metadata |
| Overall | 18,806 | 5,937 | 23,065 |