There's a lot of open government data already available, see here
Some very special people have made data available especially for GovHack, and you can access these sources in the folders above:
- Generosity New Zealand is facilitating a thriving generosity ecosystem. They administer grants for organisations looking to make a difference, and have provided data on the products they administer.
- Inland Revenue have made available some data on donations, split by Territorial Authority (TA)
- Ministry of Social Development have provided the contract-level data from their Contract Mapping website. It is available as a zipped PostgreSQL database dump (depends on PostGis), and as a series of CSV files (one per database table, without geography)
- Wellington City Council have provided an extract from the WCC rating database displaying property attributes for rateable parcels