Public Information Online UK Parliament, Scottish Parliament, Northen Ireland Assembly and the National Assembly of Wales official documents from 2006/7.
UK Parliamentary Papers (formerly HCPP) House of Commons Bills, House of Commons Papers, Command Papers from 1688 to the 2009/10 session and the Hansard series - Official Debates of the House of Lords and the House of Commons 1803-2005.
Europa Access to EU online library of publications
OECD iLibrary OECD's online library for books, papers and statistics.
