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Netscape and Mozilla are also ported to OS X. Some people like them. Cheap and cheerful html editing.
OmniGraffle.
Great diagramming package, very "Mac-like". www.omnigroup.com/applications/omnigraffle/
Another alternative to Visio is ConceptDraw
From Doug (7/8/2005):
Hi everybody, I suspect everyone except me already knows this, but I wanted to blabber about it anyway.
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