I am trying to find a link between the papers that ran the letters and their parent corp and it looks like the Los Banos enterprise is a McClatchy property. The San Jose Mercury News is owned by Media News group which owns 43 other dailies and weeklies...
I am trying to find a link between the papers that ran the letters...I think that one place to start is here is the automated "Letter to the Editor" generator here:
http://my.barackobama.com/page/speakoutAfter you pick a topic, and give them your ZIP code, they give you links to your local, regional and national newspapers.
From FReeper JimWayne:
...they even state that they will make sure that each newspaper believes that they are the only one getting the email......[and they] give you talking points next to the box in which you compose your letter.