HM TreasuryThis site contains extensive information on the U.K. budget (both proposed and past ones). Other information includes the "National Assets Register," the "Debt Management Report" from recent years, fiscal policy papers, forecasts for the U.K. economy (both independent and from the "The Financial Statement and Budget Report (FSBR)" (also known as the "Red Book"), and information on the Euro. There are also press releases, statements by the Chancellor (and speeches by him and others), a list of print publications, and extensive information on the Treasury.
Two mailing lists (one on press releases, the other on new Internet offerings by the H.M. Treasury) are described in the mailing list section titled E - Macroeconomics and Monetary Economics .
Information: firstname.lastname@example.org https://www.gov.uk/government/organisations/hm-treasury