| Rank | Referring Site | Accesses | % | Bytes | % |
|---|---|---|---|---|---|
| 1 | http://www.google.com | 23,368 | 22.17 | 605,441,122 | 25.49 |
| 2 | http://www.stanford.edu | 5,728 | 5.43 | 24,932,995 | 1.05 |
| 3 | http://search.yahoo.com | 5,611 | 5.32 | 139,825,127 | 5.89 |
| 4 | http://images.google.com | 5,199 | 4.93 | 136,846,879 | 5.76 |
| 5 | http://cmgm.stanford.edu:80 | 3,949 | 3.75 | 659,110 | 0.03 |
| 6 | http://search.stanford.edu | 2,885 | 2.74 | 21,799,540 | 0.92 |
| 7 | http://search.msn.com | 2,183 | 2.07 | 27,177,958 | 1.14 |
| 8 | http://www.osnews.com | 2,112 | 2.00 | 41,539,564 | 1.75 |
| 9 | http://falkow.stanford.edu | 1,950 | 1.85 | 1,343,810 | 0.06 |
| 10 | http://zebrafish.stanford.edu | 1,948 | 1.85 | 1,543,722 | 0.06 |
| 11 | http://falkow | 1,917 | 1.82 | 1,280,079 | 0.05 |
| 12 | http://171.65.21.3 | 1,694 | 1.61 | 568,258,271 | 23.92 |
| 13 | http://www.google.ca | 1,633 | 1.55 | 43,242,602 | 1.82 |
| 14 | http://google.yahoo.com | 1,383 | 1.31 | 37,460,249 | 1.58 |
| 15 | http://brownlab.stanford.edu | 1,094 | 1.04 | 6,693,166 | 0.28 |
| 16 | http://www.google.de | 1,084 | 1.03 | 34,422,917 | 1.45 |
| 17 | http://www.bio.davidson.edu | 1,023 | 0.97 | 2,335,405 | 0.10 |
| 18 | http://genome-www.stanford.edu | 931 | 0.88 | 7,118,937 | 0.30 |
| 19 | http://pmgm.stanford.edu | 726 | 0.69 | 515,558 | 0.02 |
| 20 | http://216.239.51.100 | 699 | 0.66 | 6,118,736 | 0.26 |
| 21 | http://boards.weddingchannel.com | 696 | 0.66 | 19,438,373 | 0.82 |
| 22 | http://dir.yahoo.com | 659 | 0.63 | 1,782,100 | 0.08 |
| 23 | http://genome-www5.stanford.edu | 644 | 0.61 | 8,842,979 | 0.37 |
| 24 | http://auto.search.msn.com | 643 | 0.61 | 4,939,895 | 0.21 |
| 25 | http://scpd.stanford.edu | 637 | 0.60 | 4,832,117 | 0.20 |