Fiddlerman.com
Awesome resource for violin music lessons and news. Many, Many Videos.
Violinmasterclass.com
Kurt Sassmannshaus Violin Website. Excellent Resource
Stringtechnique.com
Michael Hopkins website full of pedagogy information
Violinonline.com
Exceptional Violin Resource with pictures, tips, and techniques. There is also a great interactive fingering board. As well as scales and etudes.