Self-Surveillance.

The article offers information about self-surveillance. Self-surveillance is essentially gathering information on an individual's physical health, mental health, personal behavior and interaction with the environment. While paper and pen are usually used for self-surveillance, many online applications have emerged over the past couple of years that allow people to collect data about themselves. It states that as data gathering has progressed and various streams of different data types have sprang up, so has the online visualization.