U.S. Government websites can often be very helpful when doing legal research.  One way to search government websites is through Google’s U.S. Government Search – sometimes called Google Uncle Sam. 
The About page explains “The Google U.S. Government Search index includes U.S. federal, state and local sites with domains such as .gov, .mil as well as select government sites with .com, .us, and .edu domains (eg., and”
This is a great way to focus your searching on government information and get rid of a lot of extraneous stuff.