Links
Other U.S. Government:
Noise and Acoustics:
Others:
Newsgroups:
Those with access to a news server can directly access these discussion forums (Note: some news servers do not provide access to the alt.x newsgroup hierarchy, which includes groups such as alt.sci.physics.acoustics.):
Those without access to a news server can get web-based access to newsgroups through Deja-News: