A great search engine from the UN for finding international data.

Links from CICP for crime statistics internationally.

Difficulty of measuring and comparing international crime  data

This site presents the official data, definitions, methodologies and sources for the 48 indicators to measure progress towards the Millennium Development Goals.

This web site provides statistics and indicators on women and men in six specific fields of concern: population, families, health, education, work and politics and human rights. The data are compiled mainly from official national and international sources, as these are consistently authoritative and comprehensive. Other sources and estimates that have been subjected to peer review are used to supplement official sources. All sources are given at the end of each table, as are technical notes on the indicators presented.