Check out these useful websites to help with your studies:

Bloomberg Business
World-wide financial/business news updated constantly.

Google - Finance
Latest financial updates from around the world, but with a focus on the US financial markets.

Ministry of Economic Development
The Economic Development information website contains information on a range of economic issues including information technology, energy, tourism, regulatory reform, and commerce

New Zealand Treasury 
The Treasury is New Zealand's lead advisor to the Government on economic, financial and regulatory policy. We are committed to helping achieve higher living standards for New Zealanders by providing expert advice and sound management of the financial affairs of the Crown

Sparknotes - Economics
A review of economic theory - the basics.

Timetric
A vast bank of economic data and research at your finger tips. For free!

The World Bank
A great resource for looking at information regarding world banks, banking sector and some more generic material on world history and financial history.