Are there any resources for non-standard snare techniques, some thing that covers brushes, hands, rim shots(and other types of rim shots), cross sticking, muting, etc. Something that goes beyond rudiments and accents.
Florian Alexandru Zorn's Brush Secrets is one. JoJo Mayer has some videos about how to get effect sounds on the snare. Mel Brown has some YouTube videos where he demonstrates Philly Joe Jone's Brush Artistry. Philly Joe's book is out of print, but you can find copies if you search.
I'll keep a lookout, but maybe try to find some resources for foley (sound effects) artists or avant garde/classical percussion resources. Like groups who play Edgard Varèse or other 20th/21st century composers.