Data from Ireland Central Statistics Office
Irish Housing Statistics
National Account Data for EU Countries: AMECO Online
US National Accounts data from the Bureau of Economic Analysis.
US macro and financial data (and some international data) from the St. Louis Fed’s FRED. Good for charts.
IMF World Economic Outlook database
Cross-Country PPP-comparable data from the Penn World Table.
Jorda-Schularick-Taylor MacroHistory database. Covers 17 advanced economies since 1870
US financial data from the Federal Reserve Board.
The ECB’s Statistical Data Warehouse.
US stock market data from Robert Shiller.
Ken French‘s data on returns for various types of stock portfolios.
Data from the World Bank on health, development, finance and other things.