The comments speak volumes about the 'quality' of that article
I have just begun reading Ferguson's book, have heard 'The sleepwalkers' is also a good take on the first 'great' (sic(k)!) war.
There is also an interesting german book about the U-boat war in WW1 'Die
U-Boote des Kaisers', but is has not been translated into english as far as i know.