For some reason or another.. I never came across a simple overview of the different OSPF areas. So I made one.. if you like it (or NOT!) feel free to respond.
ospf-area-study-1Categories
February 2016 M T W T F S S 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 - WeatherBilthoven, Netherlands15:38, 15:38, Wed, Jan 15, 20257°Cbroken clouds96 %1033 mb3 mphWind Gust: 4 mphVisibility: 10 kmSunrise: 08:40Sunset: 16:56