U.S. Center for Army Lessons Learned

Exists to collect and analyze data from a variety of current and historical sources, including Army operations and training events, and produce information serving as lessons for military commanders, staff, and students.
http://call.army.mil/

DRMS - Defense Reutilization and Marketing Service

The DRMS is the place to obtain original U.S. Government surplus property. From this site you may search the DRMN inventory, browse the property catalogs, submit requests, or place a bid.
http://www.drms.dla.mil/

The Macgregor Briefings

Slideshow presentations explaining motives and methods for transforming the U.S. Army to exploit new military technologies. Discusses emerging technologies and their impact.
http://www.comw.org/pda/macgregor

Canadian Army Lessons Learned Centre

Lessons drawn by Canadian Army, especially from participation in numerous peacekeeping missions.
http://armyapp.dnd.ca/lfdts/choose.asp