Websites

Image source: ZUU Mumu Entertainment (Own work). CC-BY-SA-3.0. Wikimedia Commons.

String Pedagogy Notebook
Excellent website on string pedagogy. Provides information on technique, teaching strategies, the instrument (purchasing, care, maintenance, tuning, accessories), and developing musicianship. Includes a list of resources.
Violin Masterclass
On-line video violin lessons for students and professionals.
String Skills