Two sites that help answer that question. Both of these have been making the rounds, but I am adding these links to the many others online.
The now famous This American Life/NPR News special explaining how the Global Credit Ciris evolved. Lives up to its considerable hype. Make you want to pledge to NPR right now (but you can still listen for free…)
Interactive display which kind of looks like a scale representaion of numerous moons orbiting a gas giant. Which, I suppose, is appropriate. This guy put a lot of work into this…
A You-Tube channel documenting some of the random and seemingly trivial – but not really – research going on at any given time.