The R Project for Statistical Computing
R is a free software for statistical computing and graphics. It compiles and runs on a variety of UNIX platforms, Windows and MacOS.
OpenRefine
OpenRefine (previously Google Refine) is a powerful tool for working with messy data: cleaning it; transforming it from one format into another; and extending it with web services and external data.
10 Best Free and Open Source Statistical Analysis Software
Includes list of 10 free and open source statistical software. Good article on some software packages with their features.
Australian Sites
ABS business indicators
ABS is the official source of independent, reliable information about economy and its people with numbers. Business indicators includes quarterly data on profits, inventories, sales, wages and salaries.
Treasury - Australian Government
Provides links to many statistical sources for Domestic Economy, International Economy, Banking, Finance and Markets.
Monthly Statistical bulletin
The Statistics and Mapping Section of the Parliament House produces latest economic and social statistics monthly on labor market, finance and demographics etc. with international comparisons.
Reserve Bank of Australia - Statistics
Includes Financial Aggregates, Index of Commodity Prices, Retail Payments, Exchange Rates, Trade-weighted index (TWI), Index of Commodity Prices (ICP) data.
Trade and Investment data - Dept. of Foreign Affairs and Trade (DFAT)
Wide range of trade and investment information publish by DFAT for public use.
Australian Trade and Investment Commission reports and resources
Includes Guides, publications and charts on Australia’s regulatory environment and the country's performance across a range of economic and social indicators.
ASX Market statistics
ASX trading volumes and historical market statistics.
Data.gov.au
Easy way to find, explore and use public data from Australian government
CEIC - Micro and macroeconomic data on countries
Select any country to find GDP,GNP,CPI etc. as well as data on inflation, exports and imports and many more.
UN Comtrade Database
Free access to detailed global trade data. UN Comtrade is a repository of official international trade statistics and relevant analytical tables.
IMF Data
The International Monetary Fund (IMF) is an organization with 190 countries, facilitate international trade, promote high employment and sustainable economic growth, and reduce poverty around the world.
OECD Statistics
OECD.Stat includes data and metadata for OECD countries and selected non-member economies.
UN Data
Popular statistical tables, country (area) and regional profiles.
World Bank Open Data
Free and open access to global development data.