MESOMERS -- Somerset County, Maine Mailing List.
To subscribe type "subscribe" (without the quotes)
in the body of the message to
MESOMERS-L-request@rootsweb.com

(See the Somerset County, Maine Mailing List page for full instructions)

Maine Mailing List -- Mailing list for the State of Maine.
To subscribe type "subscribe maine" (without the quotes) in the body of the message to
majordomo@listserv.northwest.com

MaineRoots -- Mailing list for Maine.
To subscribe go to http://www.onelist.com/subscribe.cgi/asg and chose "Find a List" and type in "MaineRoots".

MAME Mailing List -- Mailing list for anyone with a genealogical interest in the states of Massachusetts and Maine; both when they were "one", and after they were divided.  To subscribe type "subscribe" (without the quotes) as the only text in the body of the message to
MAME-L-request@rootsweb.com.

Northeast-Roots -- Mailing List for the New England States.
To subscribe send a message to listserv@listserv.indiana.edu and type
"SUB NORTHEAST-ROOTS-L" (without the quotes) followed by
Your Name in the body of the message.

Genealogy Resources on the Internet -- list of genealogy mailing lists