[Note: I'm considering the usefulness of the "merged newsgroup" concept.
 It has the advantages of being simple and easy to understand/use,
 but it may also be confusing.  Any comments?]

A quick introduction to merged newsgroups.

	A merged newsgroup (mgr) is a very simple form of a virtual
newsgroup.  It consists of all (or some) articles from a set of
newsgroups.  Articles may be filtered by score or their unread/read
status.  The articles in a merged newsgroup can be sorted by either
the order articles were placed in the mgr, or by score order.

	One use for a merged newsgroup is to quickly check several
newsgroups for high-scoring articles.  For instance, the following
file defines a merged newsgroup containing unread articles with scores
of 5 or greater in news.*, alt.config, and comp.infosystems.*:

----- cut -----
begin virtual

filter unread
display unread
#Don't add articles that score below 5
score min 5
#No limit on the maximum score that is allowed
score max off

+news.*
+alt.config
+comp.infosystems.*

end virtual
----- cut -----

[More documentation here later?]
