Here are three things to know about this week's show:

1. If a Brooklyn publishing house didn't try to keep its ink from running off the page, Ronald Reagan might never have been elected. And that’s just one example of an innovation with unexpected consequences.

2. Facebook succeeded where MySpace and Google+ failed, in large part because of timing, according to Gina Bianchini, the founder and CEO of Mightybell.

3. Getting rejected from your dream job could be the best thing to happen to you. Disney turned Nolan Bushnell down, but he went on to create a new industry.

And this week's music:

• Waiting On The World To Change
• The Social Network
• Video Games (Club Clique For The Bad Girls Remix)
• Catch My Disease
• Cool, Calm, and Mellow