From the Iraq strategy doc:

Gains in training Iraqi security forces are updated weekly at www.mnstci.iraq.centcom.mil;
Improvements in the economy and infrastructure are collected weekly by the State Department (www.state.gov/p/nea/rls/rpt/iraqstatus/) as well as USAID, which continually updates its many ongoing programs and initiatives in Iraq (www.usaid.gov/iraq);
Extensive reports are also made every three months to Congress, and are accessible at the State (www.state.gov/p/nea/rls/rpt/2207/) and Defense (www.defenselink.mil/pubs/) Department websites.