As a social-impact entrepreneur, you need more than a passion for doing good. Here's how some 'treps are putting their chops to work to run successful enterprises and make the world a better place.
An eBay merchant quadruples his revenue with help from an online microlender.
Business-plan competitions can yield more than seed money for your bright idea -- they can also connect you with mentors, collaborators and investors.
Some green improvements may not be worth the trouble or expense. Here's how to determine which changes will provide the greatest return on investment for your company.
Intrapreneurs are launching businesses within -- and with the help of -- their places of employment.
An urban byproduct plants the seed for a big business.