| Search Engine | Total Number of Links on First Results Page (4 Medical Conditions) |
Number of Relevant Links from First Results Page(%) | Percentage of Pages with Relevant Content Reached from Selected Relevant Links** | Percentage of Pages with Relevant Content Reached in One Click from Selected Relevant Links** |
| English Engines | 3735 | 1265 (34%) | 59 | 31 |
| Altavista | 282 | 142 (50%) | 35-- | 22 |
| Ask Jeeves | 1198 | 299 (25%) -- | 68 | 48++ |
| Direct Hit | 302 | 129(43%) ++ | 38-- | 10-- |
| Excite | 232 | 61 (26%) -- | 60 | 47++ |
| 163 | 51 (31%) | 74++ | 23 | |
| Goto | 344 | 155 (45%) ++ | 43-- | 25 |
| Lycos | 353 | 132 (37%) | 50 | 18 |
| Metacrawler | 384 | 153 (40%) ++ | 70 | 22 |
| Northern Light | 241 | 55 (23%) -- | 88++ | 43 |
| Yahoo | 236 | 88 (37%) | 67 | 52++ |
| Spanish Engines | 1685 | 296 (18%) | 63 | 38 |
| Quepasa | 283 | 52 (18%) | 59 | 18-- |
| Te Respondo | 853 | 105 (12%) -- | 78++ | 60++ |
| Yahoo Espanol | 181 | 63 (35%) ++ | 66 | 45 |
| Yupi | 368 | 76 (21%) | 49-- | 28 |
++Statistically better performance than the mean of other search engines within language (p<=0.05)
--Statistically lower performance than the mean of other search engines within language (p<=0.05)
**Assuming randomly selected relevant links are representative of all relevant links.