Usenet: bogus groups
From Oracle FAQ
The following bogus usenet groups may be present at some sites, or may occasionally appear in the "Newsgroups:" header. However, none of them are regarded as legitimate groups and they should not be used:
|comp.databases.oracle||superseded by comp.databases.oracle.misc|
|comp.databases.oracle.market||should be comp.databases.oracle.marketplace|
|comp.database.oracle||should be comp.databases.oracle.* (see below)|
|comp.database.oracle.server||should be comp.databases.oracle.server|
|comp.database.oracle.tools||should be comp.databases.oracle.tools|
|comp.database.oracle.misc||should be comp.databases.oracle.misc|
|comp.database.oracle.marketplace||should be comp.databases.oracle.marketplace|
Usenet is a cooperative anarchy, and doesn't really have "official" and "bogus" groups that are enforcible. However, the above groups are considered to be invalid by the majority of admins. People posting to these groups will find propagation of their postings to be poor, and thus potential responses to them to be limited.
If you are aware of an ISP (Internet Service Provider) that carries the above groups, please ask them to remove them ASAP!