http://www.law.com/jsp/lawtechnologynews/PubArticleLTN.jsp?id=1202470952987&What_Lawyers_Need_to_Know_About_Search_Tools=&src=EMC-Email&et=editorial&bu=Law.com&pt=LAWCOM%20Newswire&cn=nw20100824&kw=What%20Lawyers%20Need%20to%20Know%20About%20Search%20Tools
It's more of an add then telling you about search tools! Try google scholar for case info or findlaw they are free.