Among other things:
It’s been believed that men are more reluctant to buy diet coke because the word ‘diet’ associated with women. Therefore, to market the product ‘Coke Zero’ been produced to associate masculinity.
Really? I always thought my masculinity remained intact if I asked for a "diet Coke in a dirty glass." Well, learn something new every day.
There are many more Difference Betweens here. Many are interesting, some are subjective. They got the difference between beer and malt liquor right, but found little difference between the John Birch Society and the Tea Party. So take their opinions with a grain of salt (or, sodium chloride, same difference)