One answer would be to look at its market value per user, a method often used by venture capitalists and stock pickers.

FORBES: Today I Learned: Reddit Could Be Worth $240 Million

The calendar method requires investors to rebalance portfolios once per year on an investment anniversary date.

FORBES: Investment Principle Matters to Principal

His method called for a firm's earnings per share to have increased in each year of the most recent five-year period.

FORBES: Energy Buys From Wall Street's Best

The IRS also expects taxpayers to save more than 1.6 million hours per year in tax preparation time from this simpler calculation method.

WHITEHOUSE: The Home Office Tax Deduction: Simplifying Rules And Helping Small Business Owners Succeed | The White House

The astrophysicist calculates that his method could save airlines hundreds of millions of dollars per year, not to mention a bushel of time for passengers.

FORBES: Bursting My Own Thought Bubbles

This method outperforms active fund selection by over one percent per year, and a disciplined rebalancing strategy generates returns that have outperformed the markets nominally and on a risk adjusted basis.

FORBES: Passive Investing Beats the Markets

Other films that did well this weekend in limited release on a per theater basis: We Need to Talk About Kevin, A Dangerous Method, The Artist and Shame.

FORBES: Lame Box Office Gives Films Like 'Tinker, Tailor' Room to Shine

Per Ola Kristensson and Keith Vertanen, at the University of Cambridge's Computer Laboratory, have developed a method of allowing speech-recognition programs to share their thoughts, as it were, with the user, in order to speed up the correction process.

ECONOMIST: Better speech-recognition technology