Cases and case information can also be found using Google Scholar (be sure to click the "Case law" radio button under the search box). Another good way to find information on large cases would be to search Google and limit to government websites (add site:gov to your search). This will find things from the various courts and the Department of Justice.
And of course, IRS.gov for all your form and publication needs.
See the Law and Legal Material Research Guide and the IRAC Method handout prepared for ACCTG 608 for more information and suggestions for completing a case brief.
