Circuit Court Opinions - From FindLaw. Decisions from 1995 to the present. Searchable by party name, docket number and full-text. - http://www.findlaw.com/casecode/courts/4th.html
Fourth Circuit Opinions - Opinions available from January, 1995 to the present. Searchable by month, by alphabetical listings of party names, and by keyword. - http://www.law.emory.edu/4circuit/