How to be a bridge between USENET & mailing list

[Tzu-Hsi Pan]

I'm interested in setting up a bridge such that mailing list members
can receive news from a particular USENET news group and they can also
post news to USENET thru the bridge.
I'm sure this has been done in lots of sites.  Could some one tell me
how to do it as well as where to find the proper software if needed?

Thanks.

Pan (pantz at mth.msu.edu)