On Sun, 30 Jan 2005 22:24:15 -0500, "J. Clarke"
wrote:

No provider carries every group and no group is carried by every provider.
However the content of a given group is, aside from local filtration and
vagaries of propagation, the same for all.

Actually there probably are several thousand of the core groups that
are carried on every (or close enough) news provider. You will only
see the groups your provider carries. You will also possibly not see
articles from some servers because of the way server peering works.
Most major servers are pretty well linked, but some of the little ones
don't get nearly as good a coverage.

Tim Douglass

http://www.DouglassClan.com