| # | Title | Name | Town/City | Region | Comment | Date |
|---|---|---|---|---|---|---|
| 4451 | N/G | Toby Bryans | London | UK | N/G | Apr 12, 2010 |
| 4452 | Mr | Alexandre Oliva | Campinas, SP | Brazil | View | Apr 12, 2010 |
| 4453 | Mr. | Eckart Labs | N/G | Germany | N/G | Apr 12, 2010 |
| 4454 | N/G | Richard Winters | Lafayette | USA | N/G | Apr 12, 2010 |
| 4455 | Mr | Geoffrey Gouez | N/G | France | N/G | Apr 12, 2010 |
| 4456 | Mr | David Barnes | Wimborne | UK | N/G | Apr 12, 2010 |
| 4457 | Dr | Geza Giedke | Garching | Germany | N/G | Apr 12, 2010 |
| 4458 | N/G | Jacob Ruben | Ypsilanti | USA | N/G | Apr 12, 2010 |
| 4459 | Mr | Mathis Bredimus | N/G | Europe | N/G | Apr 12, 2010 |
| 4460 | Mr | Jonathan Bruder | Houston, Texas | USA | View | Apr 12, 2010 |
| 4461 | N/G | CONCEPCION GARCIA HERRERA | N/G | Spain | N/G | Apr 12, 2010 |
| 4462 | Mr | Daniel Fuller | N/G | Canada | N/G | Apr 12, 2010 |
| 4463 | N/G | Sebastien Coradi | france | France | N/G | Apr 12, 2010 |
| 4464 | Mr | Balazs Hollos | N/G | UK | N/G | Apr 12, 2010 |
| 4465 | Mr | John Graves | Auckland | New Zealand | N/G | Apr 12, 2010 |
| 4466 | Mr | Andreas Goewe | Berlin | Germany | N/G | Apr 12, 2010 |
| 4467 | N/G | Jaclyn Duehr | N/G | USA | N/G | Apr 12, 2010 |
| 4468 | N/G | Matthew Mittelstadt | Boston, MA | USA | N/G | Apr 12, 2010 |
| 4469 | N/G | Jaime Pereira | Queluz | Portugal | N/G | Apr 12, 2010 |
| 4470 | Mr | Daniel Swärd | Stockholm | Sweden | N/G | Apr 12, 2010 |
| 4471 | N/G | Carl Polley | N/G | USA | N/G | Apr 12, 2010 |
| 4472 | N/G | Tim Cook | denver, co | USA | N/G | Apr 12, 2010 |
| 4473 | Mr | Anonymous | N/G | Germany | N/G | Apr 12, 2010 |
| 4474 | Mr | Sven Stein | Koblenz | Germany | N/G | Apr 12, 2010 |
| 4475 | Dr | Fernando Jose Gonzalez Blanco | Gijon | Spain | N/G | Apr 12, 2010 |
| 4476 | Mr | Andy Davies | Stonehouse | UK | N/G | Apr 12, 2010 |
| 4477 | Mr. | John Haltiwanger | N/G | USA | N/G | Apr 12, 2010 |
| 4478 | Mr. | Andrew Ragland | Glen Allen, VA | USA | N/G | Apr 12, 2010 |
| 4479 | N/G | Frederik Hollænder | N/G | Denmark | N/G | Apr 12, 2010 |
| 4480 | Dr. | Roy Forman | Tallahassee | USA | N/G | Apr 12, 2010 |
| 4481 | Mr | David Mason | N/G | UK | N/G | Apr 12, 2010 |
| 4482 | Mr | Alexandre CHABERT | N/G | France | N/G | Apr 12, 2010 |
| 4483 | Mr | Gareth Bristow | Auckland | New Zealand | View | Apr 12, 2010 |
| 4484 | Mr | Anonymous | Bedford | UK | N/G | Apr 12, 2010 |
| 4485 | Mr | Max Robitzsch | Auckland | New Zealand | View | Apr 12, 2010 |
| 4486 | ms | Valentina Mottura | N/G | Spain | N/G | Apr 12, 2010 |
| 4487 | Mr | Hugo E Martin | Berlin | Germany | N/G | Apr 12, 2010 |
| 4488 | Mr | Matthew Dombroski | Christchurch | New Zealand | N/G | Apr 12, 2010 |
| 4489 | N/G | Michael Van Lane | N/G | Canada | N/G | Apr 12, 2010 |
| 4490 | Mr | Ronald Kucinski | N/G | USA | N/G | Apr 12, 2010 |
| 4491 | N/G | Alexander Miller | Milwaukee | USA | N/G | Apr 12, 2010 |
| 4492 | N/G | Jo-Herman Haugholt | Oslo | Norway | N/G | Apr 12, 2010 |
| 4493 | Mr | Tim Marsh | Brisbane | Australia | View | Apr 12, 2010 |
| 4494 | Mr | C David Dent | Edgewater, MD | USA | N/G | Apr 12, 2010 |
| 4495 | Dr | Martin Krafft | Zurich | Switzerland | View | Apr 12, 2010 |
| 4496 | N/G | Matt Parisi | N/G | USA | N/G | Apr 12, 2010 |
| 4497 | N/G | Terry Penrose | N/G | Australia | View | Apr 12, 2010 |
| 4498 | Dr | Jeffrey Dettmann | Washington, DC | USA | View | Apr 12, 2010 |
| 4499 | Mr | Pierrick Bruneau | Nantes | France | N/G | Apr 12, 2010 |
| 4500 | Dr. | James Mottonen | Charlotte, NC | USA | View | Apr 12, 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