Throttled Pro - Throttled Pro optimizes your internet connection and provides QoS (Quality of Service) to Mac OS X.
inSSIDer - inSSIDer Essential makes it easy to maintain small business WiFi.
Ashampoo Internet Accelerator - Ashampoo Internet Accelerator is an internet connection optimizer and booster that allows you to tune your connection settings.
NetSpot - NetSpot is a free app for wireless site surveys, Wi-Fi analysis, and troubleshooting
Net Speed Booster - Net Speed Booster is an internet speed optimization tool that lets you tweak your internet settings and make them up to the mark.
Vistumbler - Vistumbler is a wireless network scanner for Windows Vista and Windows 7. Features: