Recommend a good news (usenet) service provider?

The news server provided by my current ISP hasn't been working for a long time. I'm looking for an independent, reliable usenet provider. It doesn't have to be a free one.

Any recommendations?

Here is a nice overview:

http://www.newsgroupservers.net/

I have a german usenet provider which offers his own very userfriendly client (I am a lazy person )

If I would have to take another one it would probably be Giganews (one of the biggest + longest retention), but it is not the cheapest one.

Hope this helped.