"caffeinated beverages" news and stories

I'm not sure why this isn't just called National Soda Day or something similar, but I guess there are some carbonated, caffeinated beverages that aren't soda (?).

Since soda drinkers usually have their favorite sodas and don't usually stray away from it (I'm a Diet Pepsi guy after a long affair/distraction with Diet Coke), maybe we can take this day to try a carbonated, caffeinated beverage that we've never tried or maybe one we haven't had in years. I'm going to have some Dr Pepper and see if it still tastes like it did the last time I had it, during the Reagan administration I believe.