Brian Cryer's Glossary of IT Terms with Links

Multi-post

Multi-post

To post the same message to two or more newsgroups (or forums) separately.

When multi-posting the same message is posted to one newsgroup (or forum) and then posted to another newsgroup (or forum).

When posting to forums multi-posting is often the only way to submit the same message to multiple forums.

However, when posting to newsgroups (usenet) multi-posting is generally frowned upon. For newsgroups it is considered better etiquette to cross-post (where the same message is sent to multiple newsgroups and a reply in any one newsgroup will propagate to all the other newsgroups where the message was posted.)