While watching a neat video about interactive blocks (complete with RF transmitters and OLED displays), I came across a 20-minute speech that JJ Abrams (the creator of Lost) gave on the importance of mystery. Well worth watching.
My favorite quote: "Mystery is the catalyst of imagination."
Both videos are presented via TED -- Technology, Entertainment, Design. TED's mission consists of two words: "Spreading Ideas".
"We believe passionately in the power of ideas to change attitudes, lives and ultimately, the world. So we're building here a clearinghouse that offers free knowledge and inspiration from the world's most inspired thinkers, and also a community of curious souls to engage with ideas and each other."