| # | Title | Name | Town/City | S/C/P | Region | Comment | Date |
|---|---|---|---|---|---|---|---|
| 451 | Dr | Gary Gabor | Boston | Massachussetts | USA | View | Nov 09, 2011 |
| 452 | N/G | Jason Konek | ANN ARBOR | MI - Michigan | USA | N/G | Nov 09, 2011 |
| 453 | Dr | Nin Kirkham | Perth | N/G | Australia | N/G | Nov 09, 2011 |
| 454 | Prof. | Robert Hopkins | Sheffield | N/G | UK | View | Nov 09, 2011 |
| 455 | Dr | Alistair Welchman | San Antonio | TX | N/G | N/G | Nov 09, 2011 |
| 456 | Dr | Judith Norman | San Antonio | Texas | USA | N/G | Nov 09, 2011 |
| 457 | DR | Meena Dhanda | Wolverhampton | N/G | N/G | N/G | Nov 09, 2011 |
| 458 | N/G | K Mintz-Woo | Montreal | N/G | N/G | N/G | Nov 09, 2011 |
| 459 | Mr. | Kristopher Phillips | Iowa City | Iowa | USA | View | Nov 09, 2011 |
| 460 | Professor | Phillip Cole | Cardiff | N/G | N/G | View | Nov 09, 2011 |
| 461 | N/G | Curtis Brown | San Antonio | TX | USA | N/G | Nov 09, 2011 |
| 462 | Dr | Damian Caluori | San Antonio | Texas | USA | N/G | Nov 09, 2011 |
| 463 | Dr | James Grant | Oxford | N/G | UK | N/G | Nov 09, 2011 |
| 464 | Professor | Fiona Macpherson | Glasgow | N/G | UK | N/G | Nov 09, 2011 |
| 465 | Dr | Guy Fletcher | York | N/G | N/G | N/G | Nov 09, 2011 |
| 466 | N/G | Brad Weslake | New York | N/G | USA | N/G | Nov 09, 2011 |
| 467 | N/G | Anonymous | South Hadley | N/G | N/G | N/G | Nov 09, 2011 |
| 468 | N/G | Robin Zheng | Ann Arbor | N/G | N/G | N/G | Nov 09, 2011 |
| 469 | N/G | Karen Emmerman | Seattle | N/G | N/G | N/G | Nov 09, 2011 |
| 470 | Mr | Anonymous | Rushden | N/G | UK | N/G | Nov 09, 2011 |
| 471 | Dr | Robert Northcott | London | N/G | UK | N/G | Nov 09, 2011 |
| 472 | Mr | Andreas Sommer | London | N/G | UK | N/G | Nov 09, 2011 |
| 473 | Dr | Marc Cohen | Eastsound | Washington | USA | N/G | Nov 09, 2011 |
| 474 | Dr | James Kennaway | Durham | N/G | N/G | N/G | Nov 09, 2011 |
| 475 | Mr | Adrian Machiraju | Tonbridge | Kent | UK | N/G | Nov 09, 2011 |
| 476 | Ms | Charlotte Baumann | Antigua | N/G | Guatemala | N/G | Nov 09, 2011 |
| 477 | N/G | Tom Hughes | Durham | N/G | N/G | N/G | Nov 09, 2011 |
| 478 | Dr | Thomas Heyd | Victoria | BC | Canada | View | Nov 09, 2011 |
| 479 | Mr | Francis O'Sullivan | London | N/G | UK | View | Nov 09, 2011 |
| 480 | N/G | Rajeev Godara | Chandigarh | India | N/G | N/G | Nov 09, 2011 |
| 481 | Dr | Sophie Allen | Oxford | N/G | N/G | N/G | Nov 09, 2011 |
| 482 | N/G | Alexandra Bacopoulos-Viau | Cambridge | N/G | N/G | N/G | Nov 09, 2011 |
| 483 | Mrs | Anonymous | Higham Ferrers | N/G | UK | N/G | Nov 09, 2011 |
| 484 | Dr | Michael Loughlin | Crewe | N/G | N/G | N/G | Nov 09, 2011 |
| 485 | Mr | Michael Jensen | Hadsten | Favrskov | Denmark | View | Nov 09, 2011 |
| 486 | N/G | Anonymous | Nijmegen | N/G | Netherlands | View | Nov 09, 2011 |
| 487 | Professor | Lawrence Kimmel | San Antonio | Texas | USA | N/G | Nov 09, 2011 |
| 488 | Mr | Dirk Kindermann | St Andrews | N/G | UK | N/G | Nov 09, 2011 |
| 489 | Ms | Elianne Smits | Nijmegen | N/G | Netherlands | N/G | Nov 09, 2011 |
| 490 | Mr | Adam Potts | Newcastle Upon Tyne | N/G | UK | N/G | Nov 09, 2011 |
| 491 | Mr | Thijs van Reekum | Nijmegen | N/G | Netherlands | N/G | Nov 09, 2011 |
| 492 | N/G | Suzanne Fleming | Grosse Pointe Park | Michigan | USA | View | Nov 09, 2011 |
| 493 | N/G | Vanessa Scholes | Lower Hutt | N/G | New Zealand | N/G | Nov 09, 2011 |
| 494 | Dr | Michael Rosenthal | Seattle | Washington | USA | N/G | Nov 09, 2011 |
| 495 | Ms | Polly Gibbard | Stourbridge | West Midlands | UK | Hidden | Nov 09, 2011 |
| 496 | Ms | Carolyn Mason | Christchurch | N/G | New Zealand | N/G | Nov 09, 2011 |
| 497 | N/G | Dan Weijers | Wellington | N/G | New Zealand | N/G | Nov 09, 2011 |
| 498 | N/G | Anonymous | Birmingham | N/G | N/G | N/G | Nov 09, 2011 |
| 499 | Dr | Sarah Fine | Cambridge | N/G | N/G | N/G | Nov 09, 2011 |
| 500 | N/G | Katie Harrington | Sheffield | N/G | N/G | N/G | Nov 09, 2011 |
- 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