| # | Title | Name | Town/City | S/C/P | Region | Comment | Date |
|---|---|---|---|---|---|---|---|
| 451 | Ms | Anonymous | San Francisco | CA | USA | N/G | Oct 22, 2009 |
| 452 | Dr | Greg Shaw | N/G | N/G | USA | View | Oct 22, 2009 |
| 453 | Ms | Maureen Manning | N/G | N/G | N/G | N/G | Oct 22, 2009 |
| 454 | Dr | Keith Woodward | N/G | N/G | N/G | N/G | Oct 22, 2009 |
| 455 | Ms. | Jill Onken | N/G | N/G | N/G | N/G | Oct 22, 2009 |
| 456 | Dr. | David Butler | San Marcos | TX | N/G | View | Oct 22, 2009 |
| 457 | Ms | Laura-Anne Minkoff-Zern | N/G | N/G | N/G | N/G | Oct 22, 2009 |
| 458 | Dr. | Andrew Miller | Baltimore | Maryland | USA | View | Oct 22, 2009 |
| 459 | Ms | Sachiyo Tanahashi | N/G | N/G | Japan | View | Oct 22, 2009 |
| 460 | Dr | James Hayes | N/G | N/G | N/G | N/G | Oct 22, 2009 |
| 461 | Mr. | Lawrnece Hoffman | N/G | N/G | N/G | N/G | Oct 22, 2009 |
| 462 | Dr. | Mark Snyder | N/G | N/G | N/G | N/G | Oct 22, 2009 |
| 463 | Dr. | Anonymous | N/G | N/G | USA | View | Oct 22, 2009 |
| 464 | Ms. | Sapna Thottathil | N/G | N/G | N/G | N/G | Oct 22, 2009 |
| 465 | Dr | Michael Rios | N/G | N/G | USA | N/G | Oct 22, 2009 |
| 466 | Dr. | Christian Patrick Heidkamp | New Haven | CT | USA | N/G | Oct 22, 2009 |
| 467 | Ms | Elizabeth Johnson | N/G | N/G | N/G | N/G | Oct 22, 2009 |
| 468 | Dr. | Deb Ranjan Sinha | Houghton | MI | USA | N/G | Oct 22, 2009 |
| 469 | Dr | Kathryn Besio | N/G | N/G | N/G | N/G | Oct 22, 2009 |
| 470 | Ms | Alice Warrick | Davis | CA | N/G | View | Oct 22, 2009 |
| 471 | Dr, | Rhea Presiado | N/G | N/G | N/G | N/G | Oct 22, 2009 |
| 472 | Dr | Arion Thiboumery | N/G | N/G | N/G | View | Oct 22, 2009 |
| 473 | Ms. | Dianne Duenzl | Santa Fe | NM | USA | N/G | Oct 23, 2009 |
| 474 | Dr. | Robert Voeks | Fullerton | CA | USA | View | Oct 23, 2009 |
| 475 | Dr | Byron Miller | N/G | N/G | Canada | View | Oct 23, 2009 |
| 476 | Ms | Kristin Schoenborn | N/G | N/G | USA | View | Oct 23, 2009 |
| 477 | Ms | Madalaina Morse | N/G | N/G | N/G | N/G | Oct 23, 2009 |
| 478 | Ms. | Teresa Gonzales | N/G | N/G | N/G | N/G | Oct 23, 2009 |
| 479 | Ms | Paula Lomazzi | Sacramento | CA | USA | N/G | Oct 23, 2009 |
| 480 | Ms. | Bidita Tithi | N/G | N/G | N/G | N/G | Oct 23, 2009 |
| 481 | Mr. | Zahedus Sadat | N/G | N/G | N/G | N/G | Oct 23, 2009 |
| 482 | Dr | Arnoud Lagendijk | N/G | N/G | N/G | N/G | Oct 23, 2009 |
| 483 | Mr | Diganta Kumar Das | Singapore | N/G | Singapore | N/G | Oct 23, 2009 |
| 484 | Mr | Michael McGirr | N/G | N/G | USA | N/G | Oct 23, 2009 |
| 485 | Dr. | David Nemeth | N/G | N/G | N/G | N/G | Oct 23, 2009 |
| 486 | Dr | Kemal Ali Ger | N/G | N/G | N/G | N/G | Oct 23, 2009 |
| 487 | Mr. | Stephen McFarland | N/G | N/G | N/G | N/G | Oct 23, 2009 |
| 488 | Dr | Robert Moline | St. Peter | Minnesota | USA | View | Oct 23, 2009 |
| 489 | Mr | Steven Schermerhorn | Stockton | CA | USA | N/G | Oct 23, 2009 |
| 490 | Dr. | Nicholas Velluzzi | N/G | N/G | USA | N/G | Oct 23, 2009 |
| 491 | Mr. | Paul Haverkamp | Davis | CA | USA | View | Oct 23, 2009 |
| 492 | Mr | Patrick Vitale | Toronto | ON | Canada | N/G | Oct 23, 2009 |
| 493 | Mr | Andrew Holguin | Davis | CA | USA | N/G | Oct 23, 2009 |
| 494 | Dr | Paul Groth | N/G | N/G | N/G | N/G | Oct 23, 2009 |
| 495 | Ms | Lindsey Dillon | N/G | N/G | N/G | N/G | Oct 23, 2009 |
| 496 | Mr. | Steven C. Smith | N/G | N/G | N/G | N/G | Oct 23, 2009 |
| 497 | Dr. | Laura Kindsvater | N/G | N/G | N/G | View | Oct 23, 2009 |
| 498 | Ms | Camille Kirk | N/G | N/G | N/G | View | Oct 23, 2009 |
| 499 | Dr | Elena Givental | Berkeley | CA | N/G | N/G | Oct 23, 2009 |
| 500 | Mr | Evan Applegate | N/G | N/G | N/G | View | Oct 23, 2009 |
- S/C/P - State, County or Province
- Dates displayed in the signature list are based on UTC/GMT
- Anonymous signatures signify people who have chosen not to display their names publicly
- A comment in gray indicates that the signer has hidden their comment from public view