| # | Title | Name | Town/City | S/C/P | Region | Comment | Date |
|---|---|---|---|---|---|---|---|
| 501 | DR | Mario von der Ruhr | N/G | N/G | N/G | N/G | Nov 22, 2010 |
| 502 | Mr | Thomas Mead | Leeds | West Yorkshire | UK | View | Nov 22, 2010 |
| 503 | Miss | Amy Jones | Nuneaton | Warwickshire | UK | N/G | Nov 22, 2010 |
| 504 | Mr | Nicholas English | Leeds | N/G | N/G | N/G | Nov 22, 2010 |
| 505 | Mr | Thomas Hazlehurst | Leeds | West Yorkshire | UK | N/G | Nov 22, 2010 |
| 506 | N/G | Anonymous | N/G | N/G | N/G | N/G | Nov 22, 2010 |
| 507 | Mr | Robin Scaife | Sheffield | N/G | UK | N/G | Nov 22, 2010 |
| 508 | Mr | Jonathan Payne | Sheffield | South Yorkshire | UK | N/G | Nov 22, 2010 |
| 509 | Dr | Joel Smith | N/G | N/G | N/G | N/G | Nov 22, 2010 |
| 510 | Mr | Tom Bates | N/G | N/G | N/G | N/G | Nov 22, 2010 |
| 511 | N/G | Mack Sullivan | Olympia | WA | USA | N/G | Nov 22, 2010 |
| 512 | Mr. | John Behan | N/G | N/G | N/G | N/G | Nov 22, 2010 |
| 513 | Mr | Alexander Greenberg | N/G | N/G | N/G | N/G | Nov 22, 2010 |
| 514 | N/G | Clayton Alsup | Boston | MA | USA | N/G | Nov 22, 2010 |
| 515 | N/G | John Carpenter | N/G | N/G | N/G | N/G | Nov 22, 2010 |
| 516 | Mr | Nicolas Delon | N/G | N/G | France | N/G | Nov 22, 2010 |
| 517 | N/G | Anonymous | Dundee | N/G | N/G | N/G | Nov 22, 2010 |
| 518 | N/G | Christopher Edward Ross Letheby | Banksia Park | South Australia | Australia | N/G | Nov 22, 2010 |
| 519 | Mr | Duncan Turner | N/G | N/G | UK | View | Nov 22, 2010 |
| 520 | Dr. | Lisa Warenski | N/G | NY | USA | N/G | Nov 22, 2010 |
| 521 | Dr | Anna Alexandrova | St Louis | MO | USA | N/G | Nov 22, 2010 |
| 522 | N/G | George Charles Allen | Edinburgh | UK | UK | N/G | Nov 22, 2010 |
| 523 | Dr. | Victor Di Fate | N/G | N/G | Vanuatu | N/G | Nov 22, 2010 |
| 524 | Mr. | Mike Bertrand | N/G | N/G | N/G | N/G | Nov 22, 2010 |
| 525 | Mr | Joshua Shepherd | N/G | N/G | N/G | N/G | Nov 22, 2010 |
| 526 | N/G | Jeff Engelhardt | N/G | N/G | USA | N/G | Nov 22, 2010 |
| 527 | N/G | Kristina Musholt | N/G | N/G | UK | N/G | Nov 22, 2010 |
| 528 | Dr | Adam Carter | Bishopbriggs, Glasgow | NA | UK | N/G | Nov 22, 2010 |
| 529 | Mr | Richard Baron | London | N/G | UK | N/G | Nov 22, 2010 |
| 530 | Dr. | Gualtiero Piccinini | N/G | N/G | USA | N/G | Nov 22, 2010 |
| 531 | Dr | Kieran Setiya | Pittsburgh | PA | USA | N/G | Nov 22, 2010 |
| 532 | Mr. | Phillip James | Sudbury | MA | USA | View | Nov 22, 2010 |
| 533 | Mr | Anthony Norton | N/G | N/G | USA | View | Nov 22, 2010 |
| 534 | Dr | Stephan Blatti | Memphis | TN | USA | N/G | Nov 22, 2010 |
| 535 | N/G | Jonathan Cohen | Carlsbad | CA | N/G | N/G | Nov 22, 2010 |
| 536 | Dr. | Deborah Tollefsen | N/G | N/G | USA | N/G | Nov 22, 2010 |
| 537 | N/G | Samuel Rickless | N/G | N/G | USA | View | Nov 22, 2010 |
| 538 | Mr. | Thomas Saad | N/G | N/G | N/G | N/G | Nov 22, 2010 |
| 539 | Dr | Barry Stocker | Maslak | Istanbul | Turkey | View | Nov 22, 2010 |
| 540 | Dr | Iain Macdonald | Montreal | QC | Canada | N/G | Nov 22, 2010 |
| 541 | N/G | Ryan Lake | N/G | N/G | N/G | N/G | Nov 22, 2010 |
| 542 | Mr. | Anthony Mohen | Brooklyn | NY | USA | N/G | Nov 22, 2010 |
| 543 | Mr. | Chad Raisch | N/G | N/G | USA | N/G | Nov 22, 2010 |
| 544 | Mr | Daniel McGloin | Northampton | MA | USA | N/G | Nov 22, 2010 |
| 545 | dr | Jonathan Adler | N/G | N/G | N/G | N/G | Nov 22, 2010 |
| 546 | Miss | Emma Gordon | N/G | N/G | N/G | N/G | Nov 22, 2010 |
| 547 | N/G | Wes McMichael | N/G | N/G | N/G | View | Nov 22, 2010 |
| 548 | Mr. | Emerson Doyle | N/G | N/G | Canada | N/G | Nov 22, 2010 |
| 549 | N/G | Scott Wood | Salt Lake City | UT | USA | N/G | Nov 22, 2010 |
| 550 | Miss | Holly Gooch | N/G | N/G | N/G | View | Nov 22, 2010 |
- 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