Check out these great websites and blogs.

Sophisticated Stitches Club is now defunct. However, the club’s blog is at Machine Knitters, Southeastern, PA. http://machineknittersspringcitypa.blogspot.com/ is still available for viewing and contains a lot of good information.

Knit and Sew is a knitting store located in Spring City, PA.  They offer Passap, Brother, Studio and other brands of knitting machines.
http://www.passapusa.com/store/