http://genforum.genealogy.com/me/lincoln/

This is the forum on Lincoln County, Maine on Genealogy.com

The Maine State Archives are at http://www.state.me.us/sos/arc/
Go to the lower right panel under Online Services and you will find, among others, the Marriage and Death databases, which are most useful. 

The Marriage search form is: 
http://portalx.bisoex.state.me.us/pls/archives_mhsf/archdev.marriage_archive.search_form
 
These are the marriage records of Maine 1/1/1892-12/31/1996.  You can search by 
surname(s), or town.  IE: type in Waldoboro only and get a list of all marriages involving persons of Waldoboro married between 1892-1996.  Type in surname as bride or groom and 
get a list of all marriages of people with that surname.