| Grandes editores | Nacionalidad | Total revistas impresas y electrónicas | E-journals 2000 | E-journals 2004 |
| Elsevier | Holanda/UK | 1.948 | 1.430 | 1.800 |
| Blackwell science | UK/USA | 600 | 260 | 594 |
| Kluwer academic Publishers | Holanda/USA/UK | 650 | 600 | 650 |
| Springer verlag | Alemania | 500 | 540 | 500 |
| Wiley InterScience | USA | 454 | 430 | 454 |
| Taylor and Francis Group | UK/USA | 950 | Sin datos | 937 |
| Highwire | USA | 362 | Sin datos | 362 |
| Cambridge Journals Online | USA | 342 | 120 | 342 |
| Lippincott Williams & Wilkins | USA | 288 | Sin datos | 231 |
| Total grandes editores (9) | 6.094 | 5.870 |