There's a number of ways you can tackle this.
If you have access to the Datasource admin, you can set up a
Datasource to the remote Database (as far as a CF datasource is
concerned, it's just basically just a combination of server
name/IP, username, and pw).
So on the server that you post your news to, you can do an
INSERT to your local datasource, and remote datasource.
If you don't have that kind of access... then ya you can have
one machine pull data from the other using CFHTTP and grab some XML
from the source. Or create a CFC that acts as a Web Service on the
remote server (your website I guess), and you call a function and
pass the details of the news.