I hope everyone has a happy and safe New Year.
As far as I am concerned the biggest genealogy news of 2012 was the 1940 census being released. That happened on Apr. 2nd. By Aug 8th Ancestry had completed their index using laborers in China. FamilySearch took until about Sept. 5th to complete their 1940 census index using volunteers. I think that the index on FamilySearch is more accurate. Other bloggers seem to agree.