Most law libraries provide online access to their research guides. Although they may contain information specific to the library's collections, these guides provide references to treatises, Web sources, major case law, legislation, and other relevant sources that can aid in one's research.
If your research is state-specific, you may want to browse the Web sites of a handful of major law libraries in that state.
Compiling a legislative history can be a daunting task, especially if you are unfamiliar with this type of legal research. In fact, once you know the steps involved, legislative history research can be straightforward.