Our world is bursting with ideas. Week upon week, countless new trends make the news. How can you keep up - and separate the mere novelties from those with truly enduring impact? Decide too soon and you risk investing in a passing fad. Take action too late and you may miss the next big thing. The editors at Harvard Business Review understand what's at stake. Each year, they identify the most promising ideas in business as they are still taking shape, somewhere between one person's unshakeable hunch and another's proven practice. The HBR List offers a window into that crucial space where today's most dynamic thinker and innovators live and operate every day - ahead of the curve. Join these visionaries for a whirlwind tour of the ideas that will transform the future of business in 2009 - and starting applying the breakthroughs of tomorrow today.