The Volokh Conspiracy - Free Online Constitutional Law Treatise, from the Library of Congress:

This is The Constitution of the United States of America, Analysis and Interpretation: Analysis of Cases Decided by the Supreme Court of the United States, updated through 2006. Though it has its limitations, it's generally a very useful resource -- and, it seems to me, a highly underpromoted one.

	[Eugene Volokh, November 27, 2007 at 12:51pm] Trackbacks Free Online Constitutional Law Treatise, from the Library of Congress: This is The Constitution of the United States of America, Analysis and Interpretation: Analysis of Cases Decided by the Supreme Court of the United States, updated through 2006. Though it has its limitations, it's generally a very useful resource -- and, it seems to me, a highly underpromoted one.