Pioneers such as Gordon Bell use new gadgets and Web sites to record and measure their lives
A monitor records brainwaves and charts the patterns and quality of each night's sleep. A Web service helps users optimize their Zs.
Calorie-counting system mounted on an armband. It estimates energy burned; user has to record food consumption and upload it to the Web.
A digital pen that turns notes and sketches into image files. It also records the sound of conversations, meetings, and lectures.
Fujitsu ScanSnap Scanners ($300-$500)
Copies important documents by turning them into digital files. Text-recognition software makes them searchable.