With computer, fax machines, and other technologies becoming commonplace, more and more people are running businesses from their homes and making a good living in the process. "Money" has been tracking the trend, and, in this new guide, two of the magazine's writers explain how to turn a hobby into a business, find money to start, create a winning business plan, manage cash flow, write great press releases, find low-cost health insurance and safeguard retirement, and much more.