| Rank | Referring Site | Accesses | % | Bytes | % |
|---|---|---|---|---|---|
| 1 | http://www.google.com | 64,869 | 22.34 | 1,811,053,074 | 26.85 |
| 2 | http://search.yahoo.com | 18,780 | 6.47 | 478,561,344 | 7.10 |
| 3 | http://www.stanford.edu | 15,793 | 5.44 | 72,155,220 | 1.07 |
| 4 | http://images.google.com | 12,979 | 4.47 | 318,985,388 | 4.73 |
| 5 | http://cmgm.stanford.edu:80 | 11,834 | 4.07 | 2,896,707 | 0.04 |
| 6 | http://search.stanford.edu | 7,432 | 2.56 | 62,796,524 | 0.93 |
| 7 | http://search.msn.com | 5,980 | 2.06 | 83,416,215 | 1.24 |
| 8 | http://falkow.stanford.edu | 5,358 | 1.84 | 3,701,514 | 0.05 |
| 9 | http://falkow | 4,987 | 1.72 | 3,322,511 | 0.05 |
| 10 | http://zebrafish.stanford.edu | 4,670 | 1.61 | 3,684,181 | 0.05 |
| 11 | http://steinmanlab.stanford.edu | 4,656 | 1.60 | 33,876,570 | 0.50 |
| 12 | http://www.google.ca | 4,472 | 1.54 | 120,562,362 | 1.79 |
| 13 | http://171.65.21.3 | 4,170 | 1.44 | 1,405,237,906 | 20.83 |
| 14 | http://www.bio.davidson.edu | 3,287 | 1.13 | 7,414,257 | 0.11 |
| 15 | http://www.google.de | 3,084 | 1.06 | 109,325,382 | 1.62 |
| 16 | http://brownlab.stanford.edu | 2,807 | 0.97 | 17,247,535 | 0.26 |
| 17 | http://genome-www.stanford.edu | 2,296 | 0.79 | 16,592,428 | 0.25 |
| 18 | http://www.osnews.com | 2,184 | 0.75 | 43,020,694 | 0.64 |
| 19 | http://pmgm.stanford.edu | 1,955 | 0.67 | 1,355,922 | 0.02 |
| 20 | http://boards.weddingchannel.com | 1,775 | 0.61 | 50,117,630 | 0.74 |
| 21 | http://www.protocol-online.org | 1,742 | 0.60 | 13,713,042 | 0.20 |
| 22 | http://www.google.fr | 1,726 | 0.59 | 57,439,450 | 0.85 |
| 23 | http://dir.yahoo.com | 1,720 | 0.59 | 4,870,940 | 0.07 |
| 24 | http://auto.search.msn.com | 1,683 | 0.58 | 20,726,158 | 0.31 |
| 25 | http://aolsearch.aol.com | 1,655 | 0.57 | 104,291,138 | 1.55 |