NetworkManager - NetworkManager is a set of co-operative tools that make networking simple and straightforward.
Connectify Hotspot - Connectify Me hotspot is a PC app that turns your computer into a Wi-Fi hotspot.
wicd - Wicd is an open source wired and wireless network manager for Linux.
Virtual Router Plus - Download Virtual Router Plus Windows Wifi Hotspot for free.
Wvdial - WvDial (pronounced "Weave Dial") is an easier way to connect to the internet.
Baidu WiFi Hotspot - Turn your PC into a hotspot for mobile devices.