For cymatics, Dwight has been a huge help, and pointed me in some directions, but self discovery is also great. There's a book in the library that's pretty great, and then Dwight has a few videos and writings that really help.
Here are some links to things that I've found interesting (there's a lot of repetition of info out there, but these sites seem pretty encompassing):
http://Cymatica.net/
http://www.cymascope.com/cyma_research/history.html
I know that my theoretical finished work will not look like cymatic designs, but I think there will still be interesting patterns in the chaos that results from my composition effecting the water.
Fractals in nature are a lot more new to me, so theres a lot more to learn.
This link dives deep into the fractal nature of some sounds as well as composition. It will be useful when thinking about composing.
http://www.tursiops.cc/fm/
This one has some pretty great theory to think about.
http://www.scribd.com/doc/11501198/Fractal-Sound
I really find this picture interesting.
http://www.flickr.com/photos/ladysafety/3189730876/
It's clear that theres a lot to read on the subjects, and people have already showed interest in both, but this next step in my visualization of sound could form some interesting endpoints that can inform other works on down the road.