GovLoop recently hosted an online training sponsored by Oracle, "Optimizing Government Services with Big Data." There was a great discussion on how agencies should acquire, organize, and analyze diverse data sources, as well as real examples of organizations improving service and cutting costs through Big Data.
Jeanne Holm, Evangelist, Data.gov, U.S. General Services Administration
Zach Friend, Press Information Officer and Crime Analyst, Santa Cruz, California Police Department
Franco Amalfi, Director North America Strategic Program, Oracle Public Sector
I encourage you to check out the archived training and slide deck, as well as GovLoop's Big Data Industry Perspective, which details best practices as well as some great examples of government's use of big data.