Videos are under "resources" in their respective pages, except the violin videos are on the Beg. Violin page, towards the bottom.
This page is for beginning violin students and advanced violin students that are looking for review. (Because like my mom always used to tell me, "Boring people get bored.")
Here, you will find easy songs, carefully-crafted exercises to approach those songs, and also an in-depth, concept-by-concept explanation of what is in your method book (as well as what's not in it), since there is very limited space on those pages.
Free Online Tuner: Your stings are G3, D4, A4, and E5
Use your fine tuners. Do not touch your tuning pegs!
Bandmate Chromatic Tuner (free app--not just for band instruments)
Tuning Your Violin - The link jumps to 10:11, but the whole video is worth watching.
Bow hold - The description gives details for each finger.