From Roader's Digest: The SABRE Wiki
SABRE stands for the Society for All British and Irish Road Enthusiasts, and is a society, complete with constitution, for people to discuss roads and road related topics, mostly in the United Kingdom, but Ireland and even other countries are discussed as well.
SABRE originally stood for "Study and Appreciation of the British Roads Experience". The original SABRE website was started by Brad Jackson in 1999 as a way of encouraging discussion about and study of roads in the United Kingdom, and there was a major update in August 2001 when an MSN community was introduced to allow visitors to discuss roads issues.
In 2005, the SABRE site was moved off MSN onto sabre-roads.org.uk, allowing new forums, photo galleries and the Roader's Digest to all be hosted on one website. This happened in stages, with the unofficial off-topic forum (previously run on a member's website) moving to the test forum first. The MSN community closed on 05/05/05.
On the 23rd of June 2009, the name of the society was changed, by a member vote, to 'The Society for All British and Irish Road Enthusiasts', due to the increasing number of members from Ireland.