| BCA Masterfile | 27-May-2009 |
| Interest Category | 0 - 12 months recency |
| Ancient & Medieval History | 15,000 |
| Arts | 12,000 |
| Aviation | 5,000 |
| Business / IT | 7,000 |
| Children aged 0 - 4 years | 59,000 |
| Children aged 5 - 7 years | 54,000 |
| Children aged 7 - 12 years | 44,000 |
| Children aged 13+ | 4,000 |
| Computing | 2,000 |
| Cookery | 33,000 |
| Crafts | 7,000 |
| Erotica | 13,000 |
| Fantasy & Sci-Fi | 20,000 |
| Female Fiction | 54,000 |
| Computer Games & Software | 5,000 |
| Gardening | 17,000 |
| Health & Beauty | 29,000 |
| High Brow | 33,000 |
| History | 28,000 |
| Home Improvements | 12,000 |
| Military | 17,000 |
| Modern Warfare | 4,000 |
| Music | 8,000 |
| Nature | 17,000 |
| Navy | 5,000 |
| New Age | 25,000 |
| Pets - Cats | 2,000 |
| Pets - Dogs | 2,000 |
| Popular Culture | 56,000 |
| Reference Books | 40,000 |
| Religion | 6,000 |
| Romance | 40,000 |
| Royal Family | 5,000 |
| Sport | 16,000 |
| Thrillers | 54,000 |
| Transport | 8,000 |
| Travel | 19,000 |
| TV / Films | 15,000 |