The PrismWirelessChipset made by Intersil is one of the most common 802.11b WirelessChipsets available today. It is also one of the most feature complete in terms of what the drivers will allow you to do with it.
There are several versions of the Prism chipset around, I'm not entirely sure what the differences between them are. I believe Prism1 chipsets are extinct and you are unlikely to find them anymore. Prism2/2.5 chipsets support 802.11b and are the most commonly found. Prism3 is starting to become more widely used, I belive it supports 802.11g as well as 802.11b
Prism Chipsets have great wireless support any of the following drivers will work
2 pages link to PrismWirelessChipset:
