My vote for favorite blog of 2012 is Legal Insurrection, created by William Jacobson, law professor at Cornell Law School.
I’ve been reading this blog for several years, but 2012 seemed a break-out year with the expansion into College Insurrection, additional contributors, and the massive effort Prof. Jacobson made to cover election news, especially Elizabeth Warren’s senate race in Massachusetts. Hey, it’s where I go to access Amazon–my (very) small way of helping to pay my way.