For a third party provider, Astraweb works for me. Can be had for $11/month unlimited, retention has been bumped up 160 days.
I'm really not sure why the big boys waited so long to ditch usenet. Maybe some of the old techies behind the scenes were hanging on to the feeds out of nostalgia. I guess it was just too easy to get rid of it when the NY attorney general got a bug up his ass about kiddie porn and usenet earlier this year, and made a big deal about finding it in 88 newsgroups, which is something like 0.1% of usenet groups. I doubt there are even 88 groups that are regularly trafficked by pedos and crammed with porn (i.e. a single dickhead spammer could effectively taint 88 groups pretty much instantly with a good crossposting) but what do I know about that pedo crap. I'm *totally* into S&M, pissing, and trannies. Anyway, some of the big ISP's took that as an opportune time to exit stage left. They dump a service that costs them money and maybe 2% of their customers will even notice, a grandstanding politician gets to claim victory, and his teenage son is probably pulling down a bestiality torrent and browsing pedo forums as we speak. Win win win!
It is kind of sad that the discussion part of usenet isn't nearly what it used to be since everybody bailed for forums. The idiot factor seems much higher with forums, and I find forum trolls are mostly a pale imitation of the brotherhood of dedicated, unemployed, sociopathic, old-school usenet trolls.