neg be raichussly right.
the egghead version: first group of beverages has all sorts of osmolytes—electrolytes, carbohydrates, etc. they're most likely hypertonic to (i.e., more concentrated than) your bodily fluids, which would decrease the osmotic drive to send H2O from the beverage (in your gut) into your body and into your bloodstream. remember, water wants to diffuse across the membrane to the side with the higher concentration of tiny stuff. end result: H2O doesn't get to your kidneys as quickly.
(you do have mechanisms for absorbing electrolytes into your body, which would motivate water to move out of your intestines, which must happen if you are to survive, but if you try hard (or are sick), you can overwhelm the system.)
decent water, on the other hand, should be pretty much osmolyte-free, thereby diffusing across your non-nirvana-lovin' intestines rather quickly, ending up in your bloodstream faster, thereby reaching your kidneys faster. end result: your urine loses its priority seating and emerges the way it does from a peeing statue.
as mentioned above, if you're drinking something very hyperosmolar, something with lots of solutes, you can have water go the other way—from your bloodstream (ultimately, as your water balance changes over hours, from your extravascular tissue, i.e., the rest of you) into your bon-jovi-lovin' intestines. your stool may become soft, even watery. if you're lucky, you'll just reabsorb much of that stool water as your tone-deaf caca transits ever further anusward.
and, oh, the rate of urine production is also affected by diuretics such as caffeine and ethanol. hang on to your depends adult undergarments, kidz.
any fucking questions?