| # | Title | Name | Town/City | S/C/P | Region | Comment | Date |
|---|---|---|---|---|---|---|---|
| 551 | N/G | Sasa Stankovic | Toronto | Ontario | Canada | View | Apr 01, 2011 |
| 552 | N/G | Anonymous | N/G | N/G | USA | N/G | Apr 01, 2011 |
| 553 | Mrs | Irine Koshuashvili | london | london | UK | N/G | Apr 01, 2011 |
| 554 | Dr | Peter Campbell | Regina | SK | Canada | N/G | Apr 01, 2011 |
| 555 | N/G | Daniel Haas | N/G | N/G | N/G | View | Apr 01, 2011 |
| 556 | Dr | Raj Sehgal | N/G | N/G | N/G | N/G | Apr 01, 2011 |
| 557 | Dr. | Lorraine Markotic | Calgary | Canada | N/G | N/G | Apr 01, 2011 |
| 558 | Dr. | Gualtiero Piccinini | N/G | N/G | USA | N/G | Apr 01, 2011 |
| 559 | Mr | Raphael Fiorese | Melbourne | N/G | Australia | N/G | Apr 01, 2011 |
| 560 | Mr | Yaser Hussain | N/G | N/G | N/G | N/G | Apr 01, 2011 |
| 561 | Dr. | Lee Bowie | Amherst | MA | USA | View | Apr 01, 2011 |
| 562 | N/G | michael liston | N/G | N/G | N/G | N/G | Apr 01, 2011 |
| 563 | Mrs. | Elizabeth Kshatriya-Ward | Albuquerque | New Mexico | USA | N/G | Apr 01, 2011 |
| 564 | Dr. | Shaun Gallagher | N/G | N/G | USA | View | Apr 01, 2011 |
| 565 | N/G | Norhan Noor | N/G | N/G | UAE | N/G | Apr 02, 2011 |
| 566 | mr | Oscar Larsson | Uppsala | N/G | Sweden | N/G | Apr 02, 2011 |
| 567 | N/G | Nicholas Ray | N/G | N/G | N/G | View | Apr 02, 2011 |
| 568 | Dr | Ido Geiger | N/G | N/G | N/G | N/G | Apr 02, 2011 |
| 569 | Dr. | Joel Krueger | N/G | N/G | Denmark | N/G | Apr 02, 2011 |
| 570 | Dr | Wim Vandekerckhove | N/G | N/G | N/G | N/G | Apr 02, 2011 |
| 571 | Dr | Attila Tanyi | N/G | N/G | N/G | N/G | Apr 02, 2011 |
| 572 | Dr. | Jason Kawall | N/G | N/G | N/G | N/G | Apr 02, 2011 |
| 573 | Mr | Alex MacMillan | N/G | N/G | N/G | View | Apr 02, 2011 |
| 574 | Mr | Ian Braidwood | Redhill | N/G | UK | N/G | Apr 02, 2011 |
| 575 | Mr | Anonymous | N/G | N/G | N/G | N/G | Apr 02, 2011 |
| 576 | Ms | Inga Vermeulen | N/G | N/G | N/G | N/G | Apr 02, 2011 |
| 577 | Dr | Trevor Hope | Izmir | N/G | Turkey | N/G | Apr 02, 2011 |
| 578 | Dr | Andrew Edgar | N/G | N/G | UK | View | Apr 02, 2011 |
| 579 | MS | nina gadd ninagadd@btinternet.com | N/G | N/G | N/G | N/G | Apr 02, 2011 |
| 580 | Mr | Paddy McQueen | N/G | N/G | N/G | N/G | Apr 02, 2011 |
| 581 | Dr. | Per Galle | N/G | N/G | Denmark | N/G | Apr 02, 2011 |
| 582 | Mr | Christopher Williams | London | N/G | N/G | View | Apr 02, 2011 |
| 583 | Dr | David Webb | N/G | N/G | UK | View | Apr 02, 2011 |
| 584 | DR | Eftichis Pirovolakis | Athens | N/G | Greece | N/G | Apr 02, 2011 |
| 585 | Prof. | Ted Honderich | London | N/G | N/G | N/G | Apr 02, 2011 |
| 586 | Professor | Graham Parkes | N/G | N/G | Ireland | N/G | Apr 02, 2011 |
| 587 | Professor | Douglas Burnham | N/G | N/G | N/G | N/G | Apr 02, 2011 |
| 588 | Dr | M. Altorf | N/G | N/G | N/G | N/G | Apr 02, 2011 |
| 589 | N/G | Jon Barton | N/G | N/G | N/G | N/G | Apr 02, 2011 |
| 590 | Dr | Steven Shakespeare | Liverpool | N/G | N/G | N/G | Apr 02, 2011 |
| 591 | Miss | Maria-Louise Rosbech | N/G | N/G | N/G | N/G | Apr 02, 2011 |
| 592 | Mr | Michael Campbell | London | N/G | N/G | N/G | Apr 02, 2011 |
| 593 | Mr | Jacob Gallear | N/G | N/G | UK | N/G | Apr 02, 2011 |
| 594 | Professor | David Owen | N/G | N/G | N/G | N/G | Apr 02, 2011 |
| 595 | Prof | Daniel Hutto | N/G | N/G | UK | N/G | Apr 02, 2011 |
| 596 | Professor | Raphael Cohenalmagor | Hull | N/G | UK | View | Apr 02, 2011 |
| 597 | Professor | Iain Hampsher-Monk | Exeter | N/G | UK | N/G | Apr 02, 2011 |
| 598 | N/G | Tom Brown | N/G | N/G | N/G | N/G | Apr 02, 2011 |
| 599 | Dr | Michael Wilby | N/G | N/G | N/G | N/G | Apr 02, 2011 |
| 600 | Dr | Lidia Mihaela Necula | N/G | N/G | Romania | N/G | Apr 02, 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