[/nq] If you really need to post to more than one group, crossposting (sending only one copy of the article, marked so that it shows up in both newsgroups) is preferable to multiposting (a copy of the message on each group, that means more messages to download and people on a group not seeing answers to the same question on other groups). To crosspost, you put both newsgroup names on the Newsgroups line of your article. Most newsreaders let you do that in a easy way.
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