Z80 related Usenet Newsgrous

Usenet Newsgroups (somewhat) related to Z80

AFAIK there isn't any newsgroup dedicated to Z80 only, but there are some where you may mention "Z80" without much risk to provocate an OFF-TOPIC response.
If you know of other newsgroups familiar with Z80, please tell me.

Usenet Newsgroups ...

... in English:
- alt.comp.hardware.homebuilt
- alt.comp.msx
- alt.lang.asm
- comp.arch.embedded
- comp.os.cpm
- comp.realtime
- comp.sys.amstrad.8bit
- comp.sys.msx
- comp.sys.sinclair
- sci.electronics
- comp.sys.tandy While not specifically for the Z80 (or even the TRS-80) there are some decent Z80 programmers that read and post there.
- Wavemate Computers, Google group for the WaveMate Bullet z80 based computer.
- N8VEM a quite active group (as of 2008) that is designing and building new Z80 and CP/M boards
... in German: