This has most likely been posted here before, but it's incredibly useful.
‘Painting Begins Where Language Fails’: Gao Xingjian Ink-Paintings
Between spaces 1# - Currents
"Found in Nature" - By Rosenthal. A collection of litter transformed into minimalist works of art.
Gyotaku is an ancient Japanese method of printing, whereby a natural object is smeared with ink, covered with a sheet of paper and then rubbed until the image has been transferred.
alberto seveso - ink in water
Body Scripture by Ronit Bigal
Lilibeth Cuenca Rasmussen’s extreme paintings take on a performance quality: great sweeping actions as hair is dipped in ink; her whole body a painting tool.