Cool Movies
The NGC 1333 movies show that the cloud is
permeated by expanding cavities.
They are probably more convincing in this respect than
this paper.
The same paper with better quality figures.
Note that these movies were created from Naomi Ridge's CO survey.
Movie of 13CO Channel maps of NGC 1333
Movie of Cen A Warped disk
Amanda LaPages's movie of a precessing eccentric hole