Many thanks to Jim, Paul, John, Richard, and Martin.
Cheers,
Jie
==============================================================================
From: Jim Belonis <belonis_at_dirac.phys.washington.edu>
    ftp:        ftp.uwa.edu.au:/pub/nn/
        news:       news.software.nn
            src:        news/nn/
                lib:        news/nn/*
                    bin:        nn nnpost nncheck nntidy nngrep nngoback
                        man:        nn nnpost nncheck nntidy nngrep nngoback
			> 
===============================================================================
From: Paul A Sand <pas_at_hopper.unh.edu>
Source:
    
ftp://ftp.isca.uiowa.edu/unix/nn/nn-6.5/nn-6.5.1.tar.gz 
Home Page: 
    
http://www.math.fu-berlin.de/~guckes/nn/
==============================================================================
From: "John P. Speno" <speno_at_swarthmore.edu>
http://www.math.fu-berlin.de/~guckes/nn/index.html
-- 
==============================================================================
From: Richard Eisenman <eisenman_at_tricity.wsu.edu>
Try sunsite.unc.edu
==============================================================================
From: Martin Moore <jmm_at_am.appstate.edu>
get nn at ftp.isca.uiowa.edu/unix/nn
I am running 6.5.1 on du 4.0a
Received on Sat Jun 07 1997 - 06:05:39 NZST