Wonder Shaper - A bandwidth limiting and traffic prioritization tool for linux.
Gufw - Gufw is an easy, intuitive way to manage your Linux firewall.
trickle - trickle is a portable lightweight userspace bandwidth shaper.
NetLimiter - NetLimiter is an ultimate Internet traffic control and monitoring tool designed for Windows.
Little Snitch - Little Snitch is a firewall application that monitors and controls outbound internet traffic.
cFosSpeed - cFosSpeed is a network driver, which attaches itself to existing Internet connections.