Free Usenet reader for Mac OS X [closed]
Solution 1:
Mozilla Thunderbird does a decent job with usenet.
Solution 2:
You can get the standard *nix ones via Fink or MacPorts. I'm partial to slrn, but that's a console app. If you prefer a gui, there's Pan. I've used it on Linux, and it was good. I can't speak to how well it works in OS X. (The Pan webpage mentions OS X as supported, so that's a good start.)
If you are comfortable tracking down dependencies and compiling, you can also build these on a Mac without Fink or MacPorts, but the package managers make upgrades and removal a lot easier.
Solution 3:
If you're after binary newsreader (i.e., you just want a tool to aggregate and reassemble binary postings), you might want to take a look at ninan - since its web/java based it should be pretty platform agnostic.
Solution 4:
I second Pan (install via MacPorts). Thunderbird (v3.0.1) becomes painfully slow and often crashes with larger lists. Another option (though limited in the number of headers it will download) is: MT-Newswatcher http://www.smfr.org/mtnw/