Hi Durango and welcome!
This is a great place to start posting.
Al-Anon and the Friends & Family forums as the others have said is a great place to talk to other people who have many of the same issues.
This one is kind of a catch all forum. So just post away and you will be answered.
I hope your son is really ready to receive help for his alcoholism. Please, also, remember it is not your fault that he is on this path. Speaking as an alcoholic myself I know guilt can wrack not only the alcoholic but friends and family members as well cuz they feel they somehow caused it or contributed to it or could have prevented it. Not so.
Hang in there and again... Welcome!