Jona Lendering runs a truly special web site called Livius full of great articles about ancient history. In 2010 he was awarded a prize for popularising ancient history by the Dutch National Research School of Classicists (Oikos).
He recently published his acceptance speech consisting of 14 and a half points focusing on the above. Yes I know, fourteen and a half points! Despite this whimsy it is a serious and well thought out piece that every ancient wargamer should read. It will change the way you read history books.
If you like the piece, and his approach, may I suggest you also read his list of common errors in Ancient History.