I just ordered some sale yarn from www.knitwerx.com
What a great experience. They have tons of stuff on sale all the time, my order came from Canada in six days, it was all wrapped up nicely, I got a personal note, a free sample of wool wash, and a color card for a really nice yarn on sale. There was also a note saying they are carried Addi's now.
There are many sites that I like, but this one had the personal touch that will make me come back again.