The Parliamentary History Yearbook Trust and Wiley have published online the British Parliaments and Assemblies: A Bibliography of Printed Materials. It is freely accessible to all who are interested in the history of British parliaments. With over 21,500 entries and, helpfully divided in seven chronological sections, it features printed material from the sixteenth century up to 2009. The material includes books, journal articles, essays from Festschriften and other collected works, and dissertations. It also covers the Scottish Parliament, pre-1707 and post-1999, as well as the Irish Parliament and the National Assembly for Wales.