OK. A ping list is a list of names maintained by one or more people and dealing with articles on one topic. For example the homosexual agenda ping list is maintained by little jeremiah and DirtyHarryY2K. As they become aware of articles dealing with the subject of the list, they will ping the rest of the list to the article. To get on the list you simply ask them to add you. (I pinged them to this reply as a convenience to you.)
(It's always good to ping them to an article you run across if they haven't already found it. Helping them helps us. BEsides they are great people and they work hard.)
There is a list of ping lists The updated list of ping lists that shows who runs them. If any of them look good to you either ping the owner or freepmail them to be added to the list. Note that some of these are very busy.
An ddon't worry about having an opinion. As long as it is based on truth and defended well and civilly it will be fine.
And lastly even though you've been here a while, Welcome to Freerepublic
Thank you for the pINgFORMATION. I look forward to getting involved.