This declaration was made at a meeting on Open Access to Knowledge in the Sciences and Humanities held in Berlin, Germany in October 2003. It aims to promote the Internet as a "functional instrument for a global scientific knowledge base", and says that "content and software tools must be openly accessible and compatible".

It has been signed by more than 20 international research and cultural heritage organisations, including seven large German research organisations.

The signatories encourage their researchers and grant recipients to publish their work according to the principles of the open-access paradigm, and encourage the "holders of cultural heritage" to support open access by providing their resources on the Internet.

[The declaration is available in English, French and German.]