| BCA Masterfile | 24-Nov-08 |
| Interest Category | 0 - 12 months recency |
| Ancient & Medieval History | 20,330 |
| Arts | 16,377 |
| Aviation | 6,675 |
| Business / IT | 8,744 |
| Children aged 0 - 4 years | 76,827 |
| Children aged 5 - 7 years | 69,103 |
| Children aged 7 - 12 years | 59,006 |
| Children aged 13+ | 5,307 |
| Computing | 3,837 |
| Cookery | 44,013 |
| Crafts | 9,322 |
| Erotica | 17,646 |
| Fantasy & Sci-Fi | 25,409 |
| Female Fiction | 68,443 |
| Computer Games & Software | 5,329 |
| Gardening | 21,754 |
| Health & Beauty | 39,197 |
| High Brow | 45,034 |
| History | 37,029 |
| Home Improvements | 16,087 |
| Military | 22,129 |
| Modern Warfare | 4,885 |
| Music | 10,965 |
| Nature | 21,973 |
| Navy | 6,425 |
| New Age | 31,965 |
| Pets - Cats | 1,388 |
| Pets - Dogs | 2,923 |
| Popular Culture | 72,706 |
| Reference Books | 52,972 |
| Religion | 8,178 |
| Romance | 51,627 |
| Royal Family | 7,041 |
| Sport | 22,660 |
| Thrillers | 70,896 |
| Transport | 10,293 |
| Travel | 24,669 |
| TV / Films / Sci-Fi | 21,288 |