Available over, or delivered from, the Internet.
Of a computer: actively connected to the Internet or to some other communications service.
Connected to the Internet.
Available on a computer system, even if not networked.
Of a generator or power plant: connected to the grid.
Of a system: active, particularly building facilities (such as power) or a factory or power plant.
Immersed in Internet culture. (Usually modified by an intensifier such as extremely or terminally)
To bring (a system, etc.) online; to promote to an active or running state.
While online; while in a running or active state, or connected to the Internet.