As IT needs take up an ever-bigger part of companies' energy bills and purchasing budget, the costs of maintaining computers based on their performance per dollar are growing exponentially. Ken Brill of the Uptime Institute spoke with GreenBiz Radio about the surprisingly easy ways to drop IT costs while improving performance.

Khosla, one of the founders of Sun Microsystems (and thus Silicon Valley as we know it today), is a venture capitalist heavily involved in green technologies ranging from energy-efficient IT projects to biofuels research. He spoke with GreenBiz Radio about what it will take to keep the green momentum moving.

High-tech companies like web hosting provider Rackspace face a dual challenge in the green business world: greening their operations and helping their clients get green at the same time. The company's CTO, John Engates, explains how greening their data centers has caused ripples throughout their company and the industry.

The new program offers a faster, cheaper way of testing potentially harmful chemicals that can help industries identify the potential dangers to human health and the environment posed by chemicals they use in daily operations.

Tom Szaky, CEO of a company that made its name selling fertilizer made from worm castings, talks to GreenBiz Radio about making the greenest possible products from other people's trash, turning the production cycle on its ear, and other ways that companies can design products that turn waste into gold.

The second annual Green Business Conference takes place in Chicago this month; in advance of the gathering GreenBiz Radio sat down with Denise Hamler, director of Co-Op America's green business programs, to learn how the world of green business has grown.

As IT needs take up an ever-bigger part of companies' energy bills and purchasing budget, the costs of maintaining computers based on their performance per dollar are growing exponentially. Ken Brill of the Uptime Institute spoke with GreenBiz Radio about the surprisingly easy ways to drop IT costs while improving performance.