#402: Love This Entrepreneurial Idea

Although it's been some time since I had teenagers, I can appreciate the genius behind this phone app!

#401: Businesses Rely on Honor System

Visit NBCNews.com for breaking news, world news, and news about the economy

#400: Women Entrepreneurs Surging

#399: Debit Card Cautions for College Students.

Read this article to learn how to avoid expensive debit card fees.

#398: Berkshire Hathaway Closes Over $200,000

From NBCNews.com: If you want a piece of Warren Buffett, the second richest man in America, it will now cost you $200,000. That's the price a Class A share of his company, Berkshire Hathaway, reached in trading on Thursday. That's just one share for the price of a nice six-bedroom, four-bath house in his hometown of Omaha, Nebraska. While many companies use stock splits to keep their per-share price under $1000, or even below $100, Buffett isn't a fan of that maneuver because he thinks it encourages short-term trading rather than long-term ownership. As a result, Berkshire's Class A has, by far, the largest dollar price per share for any stock trading in the U.S. Berkshire first closed above $1,000 per share on Aug. 26, 1983, a few days before Buffett celebrated his 53rd birthday. It took almost another 9 years to reach $10,000 on Oct. 16, 1992. The stock closed at $100,000 a share just over 14 years after that on Oct. 23, 2006. According to the last Forbes magazine survey, Buffett's personal wealth is $58.5 billion, second only to Bill Gates at $72 billion.

#397: Amazon Clashes With Another Significant Supplier

Amazon continues to frustrate their vendors. This summer's "feature vendor" has been publishing giant Hatchette, but now they are going head to head with Disney. Jeff Bezos seems to value good customer relations, but still has some lessons to learn with vendor relations and employee relations.

#396: The Facts on Credit Cards

For questions on the chips inside newly issued cards, what's contained in your swipe strip, security codes, etc., this short article from Real Simple magazine provides the skinny. Just click to read!