Planning of the library started in 1999 as part of the Community Support Framework. It was originally called National Science & Technology Network Library.
In 2000, the Observatory of Science and Technology (OCT) undertook an exhaustive survey of subscriptions to scientific journals for all Portuguese public research and higher education institutions. The goal was to identify the most important publishers and negotiate free access to the full text of scientific articles by researchers, faculty staff and students.
In 2001, access to the Web of Knowledge was granted, which enabled the research of and access to thousands ofabstracts of thousands of scientific articles and minutesproceedings.
Also in 2001, negotiations with some major international scientific publishers started.
In 2002, UMIC, the agency responsible for coordinating government policy for Innovation and the Information Society, elected as one of its objectivesmade it one of its main goals to establish a National Consortium for the Management of the Online Knowledge Library. Together with the Ministry of Science and Higher Education,UMIC initiated a series of actions in 2003, which led to the b-on project being implemented in early 2004.
Nowadays, b-on provides users with access thousends of journals, ebooks, records and other academic and scientific documentation.