The GbD Innovators' Showcase highlighted cutting-edge ideas from startups, small businesses, and students.

SAN FRANCISCO, Calif. -- A competition sponsored by Steelcase, Net Impact, and GreenBiz.com asked students to submit socially and/or environmentally beneficial product or business ideas to win admission to this week's event. Here are the winning ideas.

NORWALK, Conn. -- By incorporating microscopic nozzles into its ColorQube solid ink multifunction printer, Xerox has found a way to make color printing a low-cost and low-waste endeavor.

From a host of innovative food companies, farmers and thought leaders, the Natural Resources Defense Council chose three winners last night for its first-annual 'Growing Green Awards.'

WASHINGTON, D.C. -- Building retrofits, green jobs and public transit are the three keys to making the country's cities more sustainable, and although many cities are getting underway with these projects, much progress is needed quickly, according to a new report from Living Cities.

Chris D'Avignon's green job story shows how the threads of work history, business skills, and a growing personal commitment to doing things better led him to build a business that is creating more green jobs daily.

A look at the mental models that impede management progress, the role of collective intelligence in solving climate problems, and just how far off-base many people are about what business is for.

LONDON, UNITED KINGDOM -- Mayor Boris Johnson has pledged £3 million to develop ten flagship low carbon zones throughout the city, aimed at creating jobs and cutting carbon emissions.

Joel Makower writes from the annual gathering convened by the cleantech venture fund VantagePoint Venture Partners, which is meeting in Northern California's wine country this week.

OAKLAND, Calif. -- The vice president detailed a $300 million dollar investment plan for stimulus funds to improve cities' public transit and vehicle fleets, while the National Conference of Black Mayors unveiled a comprehensive "Green the City" initiative.

How can social businesses be scaled so that they maintain and enhance their mission after an IPO, acquisition, or any other transition? Judy Wicks, founder of White Dog Cafe, told her inspiring story at the Investors' Circle conference this week: The White Dog started as a coffee and muffin take-out shop on the first floor of her home and grew to a 200 seat restaurant and store with gross sales of $5M.

Companies large and small are taking Earth Day to heart, organizing events, outreach and education session for employees. We talked to more than a dozen companies across industries to find out what internal Earth Day activities they had lined up.

From recognizing the best CSR reports from last year to building the business case for sustainability, attendees at the Ceres conference discussed how, regardless of how good we're doing, we need to do better, and soon.