Over the holidays be sure to watch Inc.'s best videos of the year.

You'll get inspiration and advice from Richard Branson and Barbara Corcoran, learn the amazing personal start-up story of Alexis Ohanian--and how he coped with his mother's terminal cancer at the same time he started Reddit--as well as new strategies for how to hire top talent, spread the word about your company on social media, and identify your next business opportunity. 

To determine Inc.'s best videos of 2012, we considered a combination of those that garnered the most plays, the most likes, shares, and comments on social media--as well as votes from our on-staff editors. The selected videos here run the gamut from short conversational clips to a mini Trep Life documentary with Chicago serial entrepreneur and investor Howard Tullman.

Enjoy.

The Emotional Story of Reddit's Start & Sale
Reddit founder Alexis Ohanian set out to revolutionize the Internet. Then came an even bigger challenge.

Richard Branson: Knight of Big Ideas
Sir Audacity himself: "Dream big by setting yourself seemingly impossible challenges. You then have to catch up with them."

Barbara Corcoran's 8 Lessons for Entrepreneurs
In 1973, Barbara Corcoran took $1,000 and started a real-estate business. She sold the Corcoran Group for $66 million in 2001.

When Gangsters Tried to Extort Brooklyn Brewery
Steve Hindy wanted to avoid corrupt business dealings. But he was tested as construction wrapped up on his Brooklyn Brewery.

Gary Vaynerchuk's Secrets to Social Media
In 1997, Gary Vaynerchuk launched Winelibrary.com, and helped grow his family business from $3 million to $60 million in seven years. Here he explains marketing in an Internet world.

A Serial Entrepreneur's Next Big Bet
Howard Tullman has built more than a dozen businesses in the last 40 years. His latest, Tribeca Flashpoint Academy, is a for-profit digital arts vocational school.

How to Identify Your Next Business Opportunity
As the co-founder of a Brooklyn gourmet food and wine shop, Jason Richelson knows first-hand the shortcomings of cash register software. So in August 2008 he invented a new one, ShopKeep Register, that runs on the iPad.

Leader in Motion: How Choreographer Bill T. Jones Collaborates
Award-winning choreographer Bill T. Jones has led his dance company for 30 years. Watch how he works.

Dude, How Has Thrillist Grown So Fast?
In 2010, Thrillist founders Ben Lerer and Adam Rich knew it was time to diversify revenue streams. Here's how they did it.

How Zumba Fitness Turned Pirates Into a Street Marketing Team
Each week, 12 million people in 125 countries take Zumba Fitness classes. Here, co-founder Alberto Perlman talks about how he protects the company's trademark.