| uspto.gov | United States Patent And Trademark Office |
| hypermail.org | Hypermail Development |
| european-patent-office.org | European Patent Convention: Part Ii - Substantive Patent Law , Chapter I - Pate |
| bitlaw.com | The History of Software Patents |
| ael.be | Ael (association Electronique Libre) Wikiwiki - Big Demo 27 Aug |
| perens.com | /home/bruce/patents.html |
| nosoftwarepatents.com | Ei ohjelmistopatentteja |
| gnu.org | Gnu's Not Unix! - The Gnu Project And The Free Software Foundation (fsf) |
| ffii.org | Protecting Information Innovation against the Abuse of the Patent System |
| eurolinux.org | Petition for a Software Patent Free Europe |