Jenny Ruhl, a well-known author of business books, was diagnosed with diabetes in 1998. Nothing doctors told her about how to control her blood sugar corresponded to her own experiences and observations. To answer the questions "What causes diabetes" and "What blood sugars prevent complications" she dug into the medical journals newly available online and spent a year tracking down the facts. The result was the bloodsugar101.com web site which now gets well over a million visitors a year.