USB WiFi Dongles - The Thread

I've seen a bunch of threads about various USB Dongles for wifi, but I think having an aggregate thread about which ones work and which don't (and the processes to make them work) would be helpful. Let me know if a thread like this exists. I looked around but I might have missed something.

Here are the one's I've seen documented that work:

RALINK - Edimax EW7717UN USB Wireless - $25...

USB WiFi Dongles - The Thread