Here are few samples taken from Google Refine's project site to use with the product. Visit the wiki page for more information.
- Disasters worldwide from 1900-2008 at Infochimps
- Louisiana elected officials - must use Excel itself to convert the .xls file to a .tsv file first, because Java lib for dealing with .xls files doesn't like this particular .xls file
- Clean Air Status and Trends Network (CASTNET): Ozone - 500K rows, 6 columns
- Federal Advisory Committee Act (FACA) Committee Member List-2004 - 65K rows, 25 columns
- U.S. Overseas Loans and Grants (Greenbook) - 2K rows
- NFDC Airport data - HUGE non-delimited rows
- Geologic Time Periods - 749 rows, 5 columns