One thing I didn't mention above was that the F-16 was in competition with the YF-17 for the USAF initial contract. The F-16 won this but the Y-17 was developed into the F-18 for the US Navy.
Air Forces that currently operate the F-16 include:
Italy who have leased a small number as a fill in beween the F-104 and Typhoon

Belguim - built under licence by SABCA - was part of the so called Sale of Century F-16 deal in the mid 1970s to the Netherlands, Denmark, Norway and Belguim. "Tiger Meet" scheme from 1981 pictured.

Venezuela - not currently in service due to US arms embargo

Netherlands - built under licence by Fokker

Dutch Air Force solo display F-16

Denmark

Norway

Greece

Israel - big user and have developed many of their own mods to make it more lethal

USAF - also used by the US Navy as a agressor aircraft

Other users include:
Chile
Turkey (built under licence)
Egypt
United Arab Emirates
Bahrain
Portugal
Jordan
Pakistan
Poland (never thought this would of been possible when the F-16 was first developed)
Indonesia (probably not in service)
Thailand
S Korea (built under licence)
Japan uses a F-16 derivative built in Japan - the F-2 which ended up been 4 times more costly than the standard F-16.
... and sadly NZ should of been part of the list
