The Agency shall seek to accelerate and enlarge the contribution of atomic energy to peace, health and prosperity throughout the world. It shall ensure, so far as it is able, that assistance provided by it or at its request or under its supervision or control is not used in such a way as to further any military purpose.
The PRIS database - Containing recent plant construction project initiations, plant startups, shutdowns as well as lists of facilities by country and World Summary information such as nuclear power's percent share of total electricity generation, etc.
The Fast Reactor Database - as one would expect, but also including recent and upcoming meetings.
The Integrated Nuclear Fuel Cycle Information System - information relating to fuel cycle activities (mining, milling, conversion, enrichment, fuel fabrication, etc.) throughout the world.
Planning and Economic Studies (webpage) - home to many statistics about nuclear power's role in sustainable energy policy planning.
And there are many more.
It's important to consider the data in an integrated context. In isolation, they can be easily misinterpreted - or worse, misrepresented. For example, the PESS site shows China at the very bottom of the % nuclear share of total electrical generation (1.9%). However, looking at the PRIS entry page alone will quickly reveal that China's current nuclear build program is unparallelled: five project starts already in 2009 and six in 2008. That's quite a leap from only two project starts in both 2007 and 2006, one in 2005 and none in 2004.