Farecast
Farecast, an airline ticket price predictor, shows this infobox that explains whether you should buy now or wait for a fare drop. The clear “Wait” message is backed up nicely by the low fare history.

wait

Another nice touch: The site offers time sliders that let you dial in the exact time range that works for you. You can also choose by take-off or landing time.

time sliders

Newsvine
Ian Hall writes:

Check out Newsvine’s sweet “you don’t have time for a long demo” intro. It definitely sparked something in me.

demo

ExpanDrive
Do you like superfluous visual effects? Then you’ll love ExpanDrive.

expandrive

Isn’t this kind of like asking, “Should we show you unnecessary text?”