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There's no room for self-doubt when you're launching a company. Here are half-a-dozen ways successful entrepreneurs keep faith with themselves

Are you content with your job? Are you truly happy, and offer to take on extra work?

A recent study published in Environmental Science & Technology shows the linkage between the illegal production of coca and the continuing destruction of Colombia's rainforest. New plots of coca between 2002 and 2007 accounted for the direct destruction of 890 square kilometers of rainforest. That's roughly 6 percent of total rainforest lost in that period, which totaled to 14,000 square kilometers, or an area slightly larger than Jamaica.

As part of our continuing series, "The American Spirit," Mark Strassmann reports on the life saving efforts of Foundation 56, a mobile mammogram service that's free of charge to low-income women.