Ancestry.com is offering free access to some of its 2012 collections until December 29th.

Just a few of the databases in the free collection include:

• 1940 US Federal Census
• 1892 New York State Census
• Massachusetts Town and Vital Records 1620-1988
• Galveston, Texas Jewish Immigration Records 1901-1917
• London, England Land Tax Records 1692-1932
• Canada Voters Lists 1935-1980
• Washington Marriage Records 1865-2004
• Border Crossings from Canada to US 1895-1954
• New York Naturalization Records 1897-1944

You can visit their web site to see a list of all of the free collections available until Saturday to search them specifically. Click on “See What’s Free” on the right side for the complete list.