BWMeter is a tiny but powerful broadband/traffic monitor and controller based on WinpkFilter network drivers. It can perform real-time measure and control to any Internet/Network traffic through your computer. Meanwhile, it visually shows them in the way of chart.
Cold Turkey is a practical tool for temporarily restricting Internet access. It has the capability of blocking various websites and Internet/Network applications (especially web browsers) in custom periods of time, in order to avoid interruptions, and to finish tasks you planned more intently.