After free registration at http://news.solani.org/ you can get full
access to this server with currently 47000+ newsgroups.

posts fast and large number of groups, fast server, but use a proxy
cuz it spills ur IP

posting allowed , no registration

The owner of the server(located in Italy) apparently doesn't have a
clue as to what he's doing. He requires a follow up field and has
some other weird restrictions on posting as well as his own warped
ideas of what net abuse and spam are.
Even though you are allowed to post up to 25 messages in a 24 hour
period it is typical that you get a post rejected message because
"your IP has posted too many articles" on your first post of the day.
If you can get the server to accept your post then it's all good.
Retention is rather crappy as it is a small server.
And then there is the fact that the server has become a favorite of
usenet trolls. Even though the admin denies that he allows it,
discussion groups are full of trolls using aioe and forging posts to
high heaven in order to discredit other posters.
They do more than simply forge a nickname. The copy all the editable
header info and use it. The admin of aioe says this is perfectly
acceptable behavior and rarely if ever acknowledges any abuse
complaints. He has some strange ideas as to what forgery is as well.

All in all it's a pain to get a post through because of all the hoops
you have to jump through and it is a haven for every lowlife in
usenet. Enter at your own risk.